2020

21 May
Tierra Group is awarded a Technical Review of Project Track by a Confidential Client

20 April
Tierra Group to perform a Detailed Engineering Design for Pan American Silver

17 April
Justin Knudsen obtains Professional Engineer license in New York

16 April
Tierra Group is selected by a Confidential Client to conduct a desktop due diligence review of a Preliminary Economic Assessment for a mine development project in the USA

15 April
Samuel Engineering selects Tierra Group to provide an update to the Mexican Hat Project's Preliminary Economic Assessment

30 March
Vista Gold awards Tierra Group an Independent Technical Review of the Mt. Todd Tailings Storage Facility in Northern Territory, Australia

16 March
Kimberly Young joins Tierra Group as an Executive Assistant in Lakewood, CO

12 March
Minera Plata Real selects Tierra Group to provide design and CQA services for a new Tailings Storage Facility at Los Gatos Mine in Mexico

10 March
Troy Resources awards Tierra Group the pre-feasibility design of the Hick Pit at Karouni Mine in Guyana

9 March
Tierra Group is awarded a Tailings Re-processing Metallurgical Review for a Confidential Client in Mexico

9 March
Lane Xang Minerals selects Tierra Group to perform Resident Engineering and CQA during Heap Leach Facility construction at Sepon Mine in Laos

5 March
Tierra Group to implement a Corporate Tailings Stewardship Program at Antofagasta Minerals' Los Pelambres Copper Mine in the Coquimbo Region of Chile

1 March
Tierra Group attends Prospectors and Developers of Canada (PDAC) Annual Meeting in Toronto; 1-4 March

24 February
Tierra Group attends MineXchange SME 2020 in Phoenix, Arizona; 24-27 February

10 February
Tierra Group presents Tailings Dam Design and Management at the Nevada Water Resources Association Dam Safety Symposium in Las Vegas, NV; 10 Feb

28 January
Artmin selects Tierra Group International to provide Waste Dump Facility and Surface Water Management designs at Hod Mine in the Artvin Province of Turkey

22 January
Calibre Mining extends Tierra Group International contract to provide Annual Monitoring and Dam Inspection services at El Limón Mine in Nicaragua

20 January
Tierra Group attends AME Roundup 2020 in Vancouver, Canada; 20-23 January

13 January
Shawn Murphy joins Tierra Group International as an Environmental Engineer in Salt Lake City, UT

1 January
Tierra Group International, Ltd. Celebrates its Eighth Anniversary!

2019

31 December
Julio Juarez receives Certificate of Achievement in Tailings Management from The Mining Association of Canada

12 December
Tierra Group International performed Metallurgical Due Diligence for multiple properties for a confidential client in Argentina and Brazil

9 December
Miguel Gutierrez joins Tierra Group International as a Sr. Geotechnical Engineer in Lakewood, Colorado

5 December
Tierra Group holds its Semi Annual Meeting and Christmas celebration in Phoenix, Arizona; 5-8 December

4 December
Anglo American Quellaveco contracts Tierra Group International, S.A.C. to provide Geotechnical and Hydrogeological Drilling Supervision at the Quellaveco Mine in the Moquegua Region of Perú

30 November
RPM Global selects Tierra Group International to conduct a Tailings Due Diligence Technical Review at Morro do Ipe in Minas Gerais, Brazil

6 November
Matt Bender joins Tierra Group International as a Director of Metallurgy in Lakewood, Colorado

29 October
Patricia Garcia joins Tierra Group International, Ltd. as an Administrative Assistant in Lakewood, Colorado

23 October
Tierra Group attends Second Annual Idaho Mining Conference hosted by Idaho Mining Association and SME -Boise Section in Boise, Idaho

23 October
M3 Engineering chooses Tierra Group to provide a Heap Leach Facility Detailed Design for the Camino Rojo Mine in Zacatecas, Mexico

19 October
Condor Gold awards Tierra Group International a TSF Feasibility Design at La India Mine in Leon, Nicaragua

14 October
Natalia Soares Rodrigues joins Tierra Group International as a Geotechnical Engineering Intern in Lakewood, Colorado

10 October
Kinross Gold US selects Tierra Group to conduct a Spent Heap Leach Handling Evaluation at Bald Mountain Mine in White Pine County, Nevada

8 October
Tierra Group International is awarded a Peer Review of INR's Gediktepe Gold Mine in Balikesir, Turkey

1 October
Tierra Group to develop a Blast Vibration Monitoring Program for a confidential client in Nevada

1 October
Tierra Group International attends Southern Peru Copper Corporation Golf Tournament

24 September
B2Gold selects Tierra Group International to provide Tailings Storage Facility Phase 2 Construction Quality Assurance services at the Fekola Mine in Mali, Africa

19 September
Tierra Group International to provide a Water Balance Model for National Oilwell Varco's Big Ledge Mine near Wells, Nevada

16 September
Tierra Group International S.A.C. attends Perumin 2019 in Arequipa, Perú; 16-20 September

10 September
Asarco, LLC’s Hayden Mine (Arizona) chooses Tierra Group International to develop a Tailings Storage Facility Operation Maintenance and Surveillance (OMS) Manual

9 September
Shanna Brown joins Tierra Group International as an Engineering Technician in Elko, Nevada

3 September
RPM Global selects Tierra Group International to provide a 3rd Party Pit Slope Design Technical Review for a confidential client in British Columbia, Canada

22 August
Agnico Eagle awards Tierra Group International the La India Heap Leach Facility Phase 3 Geotechnical Investigation in Sonora, Mexico

14 August
Tierra Group International S.A.C. is awarded a Pit Design Review at Troy Resources’ Karouni Mine in Guyana

19 July
Marvin Silva obtains Professional Engineer license in New York

16 July
Tierra Group International conducts a Technical Due Diligence Study of a Tailings Storage Facility for a Confidential Client in Armenia

12 July
Sandfire Resources America, Inc. selects Tierra Group International to serve as Engineer of Record for their Black Butte Copper Tailings Storage Facility in White Sulphur Springs, Montana

10 July
Tierra Group International selected as Engineer of Record for the TSF5a phase of Aurcana Corporation’s La Negra Mine in Maconi, Mexico

9 July
Tierra Group's presentation "The 'Infamous' Legacy of Upstream Tailings Dams" is featured in the July edition of SME's Mining Engineering magazine

27 June
Jiny Carrera welcomes her daughter Ariadna Sophia; 6 lbs., 9 oz. and 19.7 inches

20 June
Tierra Group International hosts their 7th Annual Client Appreciation Golf Invitational at Hiwan Golf Club in Evergreen, Colorado; 20 June

17 June
Mako Mining selects Tierra Group International and Tes-Oro Mining Group, to design and support construction of the San Albino Mine in Nueva Segovia, Nicaragua

7 June
Consorcio Acciona selects Tierra Group International S.A.C. to provide CQA services at the Antamina Mine in Huaraz, Perú

5 June
Tierra Group attends Elko Mining Expo 2019 in Elko, Nevada; 5-7 June 2019

5 June
Tierra Group presents at the Brazilian Mining Association Forum for Engineering Design and Management Best Available Technologies and Technology Transfer; 5-6 June 2019

21 May
Arizona Minerals, Inc. selects Tierra Group International to provide Tailings Storage Facility Design Review for the Hermosa Project located in Patagonia, Arizona

15 May
Black Mountain Sand selects Tierra Group International to conduct a Geotechnical Investigation at proposed Lost Creek Project in Colorado

15 May
Great Panther Silver selects Tierra Group International to provide a TSF Cover Design and Installation Monitoring for Topia Mine in Durango State, Mexico

3 May
Continental Gold renews Tierra Group International’s contract to provide Tailings Stewardship Services at the Buriticá Project in Antioquia State, Colombia

26 April
Matt Fuller presents "The Legacy of Upstream Tailings Dams" at SME MPD Conference; 26 April

25 April
Tierra Group attends 69th Annual SME MPD Conference in Colorado Springs, Colorado; 25-27 April

15 April
Tierra Group publishes "The Legacy of Upstream Tailings Dams"

12 March
Justin Knudsen obtains his Montana PE license

12 March
Luke Jacob joins Tierra Group International, Ltd. as a Staff Engineer in Elko, Nevada

2 March
Tierra Group attends Prospectors and Developers of Canada (PDAC) Annual Meeting in Toronto; 3-6 March 2019

25 February
Monica Moncada and Matt Fuller to present “South American Tailings Management Update” in the International Session at 2019 SME Conference 27 February 2019

14 February
Jonathan Manning joins Tierra Group International, Ltd. as a Staff Engineer in Elko, Nevada

11 February
Dan Mitchell joins Tierra Group International, Ltd. as a Staff Engineer in Elko, Nevada

4 February
Dante Bolanos, P.E. joins Tierra Group International, Ltd. as a Sr. Project Engineer in Tucson, Arizona

29 January
Tierra Group International, Ltd. quoted in Reuters News Brumadinho Tailings Dam Disaster article

15 January
Scott Ureel joins Tierra Group International, Ltd. as a Project Engineer in Elko, Nevada

1 January
Tierra Group International, Ltd. celebrates its Seventh Anniversary!

2018

8 November
As a featured speaker, Pete Kowalewski presented Tailings Stewardship during the Operational Session at the Inaugural Idaho Mining Conference in Boise, Idaho; 16 November

9 October
Jim Shultz welcomes his granddaughter Opal Marcella Shultz; 8 lbs., 1 oz. and 20 inches

2 October
Tierra Group attends Tailings & Mine Waste 2018 in Keystone, Colorado; 30 Sept - 2 Oct

25 September
Julio Juarez attends XIX Congreso Peruano de Geología in Lima, Perú; 23-26 September

6 September
MMG Limited selects Tierra Group International, SAC to provide geological and geotechnical logging services for the Ferrobama open pit at their Las Bambas Copper Mine in the Apurimac Department Perú

5 September
Pete Kowalewski attends Nevada Mining Association Convention 2018 in Lake Tahoe, Nevada; 5-8 September

4 September
Monica Hernandez Moncada joins Tierra Group International, S.A.C. as a Sr. Geotechnical Engineer in Lima, Peru

27 August
Eric Miller joins Tierra Group International, Ltd. as a Staff Engineer in Lakewood, Colorado

1 August
Vladimir Miñano becomes an Autodesk Certified Professional in AutoCAD Civil 3D

26 July
Pete Kowalewski obtains Professional Engineer licenses in Minnesota and South Dakota

17 July
Justin Knudsen obtains Professional Engineer licenses in Minnesota, South Dakota, and Idaho

11 June
Richard Salas joins Tierra Group International, Ltd. as a Staff Engineer in Salt Lake City

8 June
Great Panther Silver selects Tierra Group International to provide a Preliminary Engineering Analysis for Topia Mine in Durango State, Mexico

6 June
Tierra Group to attend 2018 Elko Mining Expo; 4-8 June in Elko, Nevada

1 June
Tierra Group publishes "In Pit Tailings Storage - Converting Liabilities Into Assets" by Matt Fuller, CPG, P.Geo

29 May
Dr. Marvin Silva obtains Professional Engineer license in Alaska

18 May
McEwen Mining awards Tierra Group an In-Pit Tailings Storage Evaluation at the El Gallo Project in Mexico's Sinaloa State

16 May
U.S. Mine Corporation awards Tierra Group International an Evaporation Pond Design and Tailings Storage Facility Evaluation at the Victoria Mine near Elko, Nevada

7 May
St. Lawrence Zinc Co. awards Tierra Group a Tailings Storage Facility Design Review project at Empire State Mines in St. Lawrence County, New York

23 April
Minera Aruntani awarded Tierra Group a project to perform a complementary stability analysis of the heap leach pad at the Apumayo Mine located in the Ayacucho department of Southern Peru

21 February
Matt Fuller obtains licensure as a Professional Geoscientist with The Association of Professional Engineers and Geoscientists of British Columbia

7 February
Tierra Group International, Ltd. awarded an Independent Tailings Review at SSR Mining, Inc’s. Pirquitas Mine in Jujuy Province Argentina.

15 January
Minsur S.A. awarded Tierra Group International SAC a leach pad and waste rock dump Electrical Tomography and analysis project at their Pucamarca Mine in Tacna, Perú

12 January
Tierra Group International, Ltd. conducts underground mine consultation at Kerr Mines, Inc. Copperstone Mine in Arizona

3 January
Johnny Prettyman obtains Professional Engineer license in Utah

1 January
Tierra Group International, Ltd. Celebrates its Sixth Anniversary!

2017

12 December
Southern Copper (Grupo Mexico) awards Tierra Group International, Ltd. a Tailings Storage Facility Engineering Design Review at its Toquepala Mine in Tacna, Perú

1 December
Orion Resource Partners awards Tierra Group International, Ltd. the Project Sky Technical Review and Due Diligence study

29 November
Tierra Group to attend 2017 AEMA Meeting in Reno, Nevada; 4-8 December

29 November
Tierra Group to attend Annual SME Arizona Conference in Tucson, Arizona; 3-4 December

21 November
Pete Kowalewski obtains Professional Engineer license in New Mexico

6 November
Tierra Group International is selected to perform the Detailed Design of the Phase 5 Heap Leach Pad at Agnico Eagle's Crestón Mascota Mine

20 October
Tierra Group International's Marvin Silva has been selected to sit on Quinsam Coal's Independent Tailings Review Board

19 October
Tierra Group to attend the XXXII International Mining Convention 25-28 October in Guadalajara, Mexico

18 October
Grupo Mexico awards Tierra Group a geotechnical and geological drilling supervision project at Southern Peru Copper's Toquepala Mine

2 October
Karen Davenport joins Tierra Group International, Ltd. as a Civil Engineer in Salt Lake City, Utah

6 September
Tierra Group attends the Nevada Mining Association Convention 6-9 Sept in Lake Tahoe, Nevada

8 August
RPA, Inc. awards Tierra Group tailings design for Gold Reserve Inc.’s Brisas-Cristinas NI 43-101 Preliminary Economic Assessment in Bolivar, Venezuela

8 August
Gold Reserve, Inc. awards Tierra Group conceptual oxide tailings storage facility design in Bolivar, Venezuela

18 July
Tailings Stewardship and Environmental Protection

28 June
Kerr Mines. Inc. awards the Copperstone Prefeasibility Study to Hard Rock Mining Consultants teamed with Tierra Group International, Ltd.

22 June
Tierra Group hosts their 5th Annual Client Appreciation International Golf Invitational at Hiwan Golf Club in Evergreen, Colorado

8 June
Tierra Group International to attend Elko Mining Expo, 8-9 June in Elko, Nevada

1 June
Tierra Group publishes "Tailings Stewardship: Training from the Tailings Beach to the Board Room"

1 June
Jim Willis promoted to Sr. Project Manager

29 May
Lydian International Ltd. awards Tierra Group International, Ltd. a 3rd party technical review of the Amulsar Gold Heap Leach Facility Design in Vyots Dzor Province, Armenia

17 April
Tierra Group signs Master Services Agreement with Kinross Gold Corp. to serve as independent experts on their corporate tailings review board

10 April
Jesús Luis Torres joins Tierra Group International, SAC as a Junior Geological Engineer in Lima, Peru

3 April
Tierra Group signs contract with Minera Metalurgico del Boleo S.A. to provide an independent, tailings facility design peer review at their Boleo Mine in Baja Sur Mexico

27 March
Tierra Group International, Ltd. awarded a Tailings Management Conceptual Study at Don David Gold’s (Gold Resources Corp) El Aguila mine in Oaxaca, Mexico.

6 March
Tierra Group International's Matt Fuller to sit on Stillwater Mining's East Boulder Mine tailings storage facility Independent Review Panel

3 March
Tierra Group awarded leak detection project with Timmins Gold Corp. at their San Francisco Mine in Sonora Mexico

1 March
Tierra Group attends Prospectors and Developers of Canada (PDAC) Annual Meeting in Toronto; 5-8 March

19 February
Tierra Group International attends SME Annual Meeting in Denver, CO

5 February
Philip River Prettyman is born to Johnny and Tasha Prettyman. 8 lbs, 6 oz., 21 inches long. Mom and baby are doing great.

30 January
Tierra Group International, Ltd. helps Morumbi Resources Inc. successfully secure a $15M insurance policy for their Tailings Storage Facilities at Mina El Mochito, Honduras

12 January
Tierra Group International, Ltd. awarded project to provide Corporate Tailings Stewardship Services at Couer Mining, Inc.’s Palmarejo Mine in Chihuahua, Mexico

9 January
Tierra Group International, SAC awarded contract at Barrick Misquichilca’s Mina Lagunas Norte to perform hydraulics and water quantification engineering study

1 January
Tierra Group International celebrates its Fifth anniversary!

2016

15 December
Tierra Group International, Ltd. makes final principal payment on business loan taken out in 2012 to fund company start-up, making them debt-free

5 December
Tierra Group attends American Exploration & Mining Association Annual Conference 5-9 Dec in Reno, NV

4 December
Tierra Group attends SME Arizona Conference 4-5 Dec in Tucson, Arizona

29 November
Tailings Stewardship - Adding Value to Due Diligence

11 November
Tierra Group International, Ltd. is awarded the Engineer of Record role at Barrick's McLaughlin Mine in Northern California

7 November
Troy Holm joins Tierra Group International, Ltd. as Sr. Civil 3D Designer in the Lakewood, CO

3 November
Compañia Minera Antapaccay awards Tierra Group International, SAC a Geotechnical Instrumentation Monitoring and Data Processing project at Antapaccay Copper Mine in Espinar Province, Cuzco, Perú

3 November
Tierra Group is awarded Geotechnical Instrumentation Monitoring project with Tintaya-Antapaccay in Perú

18 October
Julio Juarez presents Tailings Stewardship Services at the Colegio de Ingenieros del Peru in commemoration of Geological Engineering Week in Lima

14 October
Tierra Group contracts with Gold Resource Corporation to perform a peer review of the Isabella - Pearl Heap Leach Facility Design in Nevada

6 October
Field Identification and Mitigation of Geosynthetic Clay Liner Seam Separation in a Tailings Impoundment Composite Liner System

6 October
Solution Collection Pipes on Slopes

6 October
Stress Redistribution of Adjacent Solution Collection Pipes

5 October
Tierra Group awarded Phase 1 Peer Review and Phase 2 TSF Design for Aura Minerals 43-101 Compliant Feasibility Study at the Ernesto e Pau-a-Pique mine in Mato Grosso, Brazil

1 October
Tierra Group International, SAC expands its office space in Lima, Peru

1 October
In conjunction with the Fourth International Conference on Heap Leach Mining Solutions, Tierra Group International SAC is hosting an Open House on Wednesday, October 19th at our Lima office location

30 September
Alcides Panez joins Tierra Group International, SAC as a Civil Engineer in Lima, Peru

23 September
Tierra Group to attend Tailings and Mine Waste '16 October 2nd - 5th in Keystone, Colorado. Pete Kowalewski to present technical paper

19 September
Tierra Group is awarded Tailings Storage Facility Optimization Study at Texel Capital, Ltd.'s Orotex Mine Project in Costa Rica

6 September
Pete Kowalewski attends the Nevada Mining Association Convention September 7th - 10th in Lake Tahoe, Nevada

6 September
Jim Shultz attends XV Congreso de Ingeniería Civil 2016; September 7th - 10th in San Jose, Costa Rica

9 August
Marvin Silva and Francisco Barrios to attend International Conference on Heap Leach Mining Solutions; 18-20 October, Lima, Peru. Marvin Silva to present 2 technical papers.

9 August
Tierra Group contracts with B2Gold to perform the Tajo Crimea Investigation and Preliminary Evaluation at La Libertad Mine in Nicaragua

11 July
Tierra Group contracts with Endeavour Silver to provide Tailings Stewardship Services at El Cubo, Bolanitos and Guanacevi mines in Mexico

24 June
Tierra Group International hosts their Semi-Annual Meeting (SAM) 24-25 June in Lakewood, CO

18 June
Tierra Group will host their 4th Annual Client Appreciation International Golf Invitational at Hiwan Golf Club in Evergreen, Colorado on June 23rd

15 June
Dessire Lopez joins Tierra Group International, Ltd. as an Administrative Intern in Lakewood, CO

10 June
Tierra Group signs engagement letter with Texel Capital, Ltd for the Orotex Mine Project in Costa Rica

6 June
Sergio Castaneda joins Tierra Group as an Engineering Intern in Elko, Nevada

1 June
Josh Prettyman is promoted to Staff Engineer III

27 May
Jared Purdy obtains his California PE license

23 May
Bob Beach joins Tierra Group International, Ltd. as a Staff Engineer in Lakewood, CO

13 April
Nettie Quintana joins Tierra Group International, Ltd. as Senior Engineering Technician in Elko, NV

30 March
The Electrum Group awards Tierra Group Los Lirios Water Characterization and Baseline Study Project in Honduras

28 March
Torex Gold Resources awards Tierra Group a contract to develop a Dry Stack Tailings Monitoring Plan at their Morelos Mine in Guerrero, Mexico

6 March
Tierra Group to attend Prospectors and Developers of Canada (PDAC) Annual Meeting in Toronto

3 March
Tierra Group becomes an Organizing Committee Member and Sponsor of the Tailings and Mine Waste Conference

23 February
Nyrstar awards Tierra Group contract to provide corporate Tailings Stewardship services for all of their mines in the Americas; Canada, U.S., Mexico, Peru and Chile

22 February
Tierra Group attends SME Annual Meeting in Phoenix, Arizona

22 February
Elizabeth Ayala joins Tierra Group International, S.A.C. as Assistant to the General Manager in Lima, Perú

1 January
Tierra Group International, Ltd. Celebrates its 4th Anniversary!

2015

30 December
Joshua Prettyman obtains Professional Engineer licensure in Utah

21 December
Tierra Group signs Master Services Agreement to provide Tailings Stewardship Services to Jaguar Mining Inc. at their Caeté, Paciencia and Tourmalina Mines in Minas Gerais, Brazil

14 December
Tierra Group is awarded B2Gold’s Fekola Mine Construction Project Earthworks and Concrete Construction Quality Control (CQC) services contract in Mali, Africa

3 December
Jiny Carrera obtains Permanent Resident Status in the United States

25 November
Tierra Group signs Master Services Agreement with JDS Mining & Energy to perform an EIA Review for the Buritica Project in Antiocha, Colombia

11 November
Jim Shultz attends Congreso Internacional de Mineria “La emergente industria minera en Centroamerica: Retos y oportunidades” November 11th - 13th in Panama City, Panama

9 November
Carla Arllentar joins Tierra Group International, S.A.C. as Administrative Assistant in Lima, Perú

4 November
Tierra Group awarded Construction Quality Assurance Services project at B2Gold's Fekola Mine Development Project in Western Mali

26 October
Matt Fuller presents "Tailings Stewardship - Genuine Corporate Responsibility" at Tailings and Mine Waste 2015 Conference in Vancouver, B.C. on October 26th

19 October
Tierra Group signs Master Services Agreement with Lode Star Gold Inc. in Goldfield, NV

24 September
Advance copy of "Tailings Stewardship - 'Genuine' Corporate Responsibility", published for Tailings and Mine Waste 2015 Conference. Proceedings now available on our Publications page under News.

12 September
Pete Kowalewski and Francisco Barrios attend 3rd International Conference on Heap Leach Solutions September 12th - 16th in Reno, Nevada

9 September
Pete Kowalewski attends the Nevada Mining Association Convention September 9th - 12th in Reno, Nevada

29 August
Tierra Group receives a U.S. Trade and Development Agency grant to attend the Asia International Mining Expo in Sydney, Australia, 1-4 September 2015

24 August
Tierra Group International, Ltd. sign Master Services Agreement with Newmont Mining

28 July
Tierra Group donates sports equipment to B2Gold's El Limon Youth Sports League

13 July
Tailings Stewardship - Genuine Corporate Responsibility

1 July
Tierra Group signs Master Services Agreement with Empresa Minera Paititi S.A. to provide Tailings Stewardship service at their Don Mario Mine in Bolivia

25 June
Tierra Group hosts their 3rd Annual Client Appreciation International Golf Invitational at Hiwan Golf Club in Evergreen, Colorado.

24 June
Tierra Group signs Master Services Agreement with Crocodile Gold Corp. in the Northern Territory of Australia

17 June
Tierra Group signs Master Services Agreement with Agnico Eagle Mexico S.A. de C.V. to provide geotechnical and water resources engineering services.

15 June
Marco Noa joins Tierra Group as Civil-Hydrological Engineer in Lima, Perú

1 June
Francisco Barrios joins Tierra Group as Project Manager in Southwest Region office in Arizona

11 May
Marvin Silva, Ph.D., P.E., P.Eng. joins Tierra Group as Senior Geotechnical Consultant in Tierra Group's Southwest Region office in Arizona

1 May
Joshua Prettyman passes the Utah PE Exam

24 April
Goldcorp, Inc. signs contract with Tierra Group to provide Tailings Stewardship Strategy Services at all of Goldcorp's operating mines in Latin America

23 April
Tierra Group has been accepted into the Asociación Costarricense de Geotécnia in San Jose, Costa Rica

10 April
Elko office moves to a new location: Effective April 20th we will be located at 222 9th Street

26 March
Santacruz Silvers' Rosario Mine resumes production upon completing Tierra Group's design-build Geotube Tailings Containment Facility

11 March
Tierra Group to determine feasibility of re-commissioning tailings storage facility at Santacruz Silver Rosario Mine in Mexico

5 January
Daniel Granda, P.E. joins Tierra Group as Project Geotechnical Engineer in Lakewood office

1 January
Tierra Group International celebrates its third anniversary!

2014

30 December
Tierra Group closes on a new building in Elko, Nevada

19 December
Tierra Group signs a Master Services Agreement with Oracle Mining Corp. to develop a Final Feasibility Study for the Oracle Ridge Copper Project in Arizona

18 December
Tierra Group International’s client Midas Gold Completes Positive Preliminary Feasibility Study for Stibnite Gold Project, Idaho. Learn more at:

15 December
Mike Nelson, P.E. joins Tierra Group International as a Senior Consultant in the Lakewood, Colorado office

9 November
In conjunction with the Second International Conference on Heap Leach Solutions, Tierra Group International SAC is hosting an Open House on Tuesday, November 11th at our new Lima office location

3 November
Johnny Prettyman joins Tierra Group International as Staff Engineer in Salt Lake City office

14 October
Tierra Group signs new contract with Aurcana Minerals at La Negra Mine in Querétaro, Mexico

20 September
Tierra Group International, Ltd.’s company logo receives Registered Trademark status with the United States Patent and Trademark Office

16 September
Justin Knudsen obtains his Missouri PE

15 September
Vladimir Miñano joins Tierra Group International, S.A.C. as Project Engineer in Lima, Perú

2 September
Matt Fuller to present keynote address at Geosynthetics in Mining Conference September 8th - 11th in Vancouver, Canada

2 September
Pete Kowalewski and Matt Fuller attend the National Mining Association Annual Meeting September 3rd - 5th in Reno, NV

1 September
On September 1st Tierra Group International, S.A.C. opens office at Avenida Larco 853, Oficina 301, Miraflores-Lima, Perú

25 August
Tierra Group kicks off Aranzazú project in Zacatecas, Mexico

23 August
Tierra Group signs contract with American Gypsum in Gypsum, Colorado

22 July
Lily Málaga joins Tierra Group International, S.A.C. as Administrative Manager in Lima, Perú

1 July
Tierra Group International, Ltd. announces the opening of Tierra Group International S.A.C. in Lima, Perú.

1 July
Julio Juarez joins Tierra Group as General Manager of Tierra Group International S.A.C. in Lima, Perú.

26 June
Tierra Group hosts their 2nd Annual Client Appreciation International Golf Invitational at Hiwan Golf Club in Evergreen, Colorado.

13 May
Beth Knudsen joins Tierra Group as Administrative Manager in Lakewood, CO

30 April
Tierra Group signs Master Services Agreement with The Doe Run Company to provide multiple site tailings engineering stewardship services

24 April
Matt Fuller presents “Advances in Tailings Handling – A Clarification of Conventional, Thickened, Filtered and Paste Tailings” at SME MPD 2014 Annual Meeting

4 April
Tierra Group signs contract with Aura Minerals, Inc. at their San Andres Mine in Honduras

27 February
Tierra Group signs contract with Gold Resource Corporation at their El Aguila Mine in Mexico

26 February
Uncertainty in PMP and Recurrence Interval-Based Design Storm Estimates from Sparse Data

26 February
Gene Bosley presents Technical Paper at SME in Salt Lake City

1 January
Tierra Group Celebrates its Second Anniversary!

2013

9 December
Michael Goodhue passes his PE exam

20 November
Tierra Group International signs new contract with Klondex Gold & Silver Mining Company for a new WRSF at Fire Creek Mine

3 September
Justin Knudsen is promoted to Sr. Project Manager

9 August
Tierra Group signs new contract with Waterton for a TSF Final Permanent Closure Plan at Esmeralda Mill

22 July
Tierra Group signs new contract with Nyrstar Mexico for Campo Morado Operations

18 July
Tierra Group signs new contract with B2Gold for Masbate Water Treatment Plant Design in the Philippines

1 July
Jiny Carrera, Project Geotechnical Engineer, joins Tierra Group International Team

26 June
Tierra Group signs contract with Sterling Gold Mining Corporation, our 15th client

25 June
Tierra Group signs new contract with Sonoran Resources

24 June
Sam Holcomb, Staff Engineer, joins Tierra Group International Team

24 June
Tierra Group signs contract with Rosemont Copper, our 14th Customer

12 June
Tierra Group signs contract with Waterton Global Mining Company, our 13th customer

6 June
Tierra Group signs contract with Jaguar Mining Inc., our 12th customer

1 June
Tierra Group completes Mine Planning Optimization Study in the Philippines

28 May
Sean Robinson, Staff Engineer, joins Tierra Group International Team

13 May
Andrew Leman, Staff Engineer, joins Tierra Group International Team

5 May
Kevin Sessions, Staff Engineer, transfers from Salt Lake City to the Elko office

13 March
Tierra Group completes Blast Vibration Study for International Minerals

3 March
Tierra Group's Salt Lake City Office moves to its new location at 111 E. Broadway, Suite 220

27 February
Tierra Group signs contract with Midas Gold, our 11th Customer

2 February
Tierra Group Rolls Out New Website

31 January
Tierra Group registers in the State of Arizona

1 January
Tierra Group Celebrates 1 Year Anniversary!

2012

19 September
Tierra Group Colombia registers in the Bogotá Chamber of Commerce

1 September
Tierra Group registers in the Idaho Board of Engineers

7 July
Tierra Group signs a contract with Knight Piésold Denver, our 9th Customer

26 June
Tierra Group signs contract with Great Basin Gold Ltd., our 8th Customer

18 June
Tierra Group signs contract with Douglas County Colorado our 7th Customer

11 June
Todd S. Street, P.E., Project Civil Engineer, joins Tierra Group Team

1 May
Troy W. Denning, P.E., Senior Civil Engineer, joins Tierra Group Team

30 April
Tierra Group begins working directly with Sonoran Resources, LLC, our 6th Customer

4 April
Tierra Group signs contract with Black Dolphin Consulting, LLC, our 5th Customer

27 February
Sheila Kluck, P.E., P.G., Senior Project Geotechnical Engineer, joins Tierra Group Team

20 February
Kevin Session, EIT, Staff Civil Engineer, joins Tierra Group Team

20 February
Joshua A. Prettyman, EIT, Staff Engineer, joins Tierra Group Team

20 February
Michael S. Goodhue, EIT, Staff Engineer, joins Tierra Group Team

24 January
Tierra Group signs contract with Nyrstar Honduras, our 3rd Customer

23 January
Tracey L. Rozelle, Project Assistant II, joins Tierra Group Team

23 January
James A. Willis, P.E., Project Engineer, joins Tierra Group Team

23 January
Adrien Butler, P.E., Project Civil Engineer, joins Tierra Group Team

23 January
Gene Bosley II, P.E., Senior Civil/Water Resources Engineer, joins Tierra Group Team

23 January
Justin W. Knudsen, P.E., Senior Civil/Geotechnical Engineer, joins Tierra Group Team

17 January
Tierra Group signs contract B2Gold Corp., our 2nd Customer

10 January
Tierra Group signs contract with Silver Standard Resources, Inc., becoming our 1st Customer!

1 January
Becky Kohl-Fuller, Finance Manager, joins Tierra Group Team.

1 January
Martha Sanchez-Hayre, Administrative Manager, joins Tierra Group Team.

1 January
Kari Kowalewski, Administrative Assistant, joins Tierra Group Team.

1 January
Peter E. Kowalewski, P.E., Principal Engineer, joins Tierra Group Team.

1 January
Matt Fuller, CPG, LEG, Principal Engineering Geologist, joins Tierra Group Team.

1 January
Tierra Group’s 1st day in business!