14 August 2017 – Minera Plata Real signs contract with Tierra Group International, Ltd. to provide a detailed design of the Tailings Storage Facility and a Geotechnical Investigation of the process plant and ancillary facilities at their Los Gatos Project in Mexico

8 August 2017 – Gold Reserve, Inc. awards Tierra Group conceptual oxide tailings storage facility design in Bolivar, Venezuela

8 August 2017 – RPA, Inc. awards Tierra Group tailings design for Gold Reserve Inc.’s Brisas-Cristinas NI 43-101 Preliminary Economic Assessment in Bolivar, Venezuela

1 August 2017 – Global Geoscience awards Tierra Group International, Ltd. preliminary water management and geotechnical engineering services to support a Preliminary Feasibility Study at their Rhyolite Ridge Project in Nevada

28 June 2017 – Kerr Mines. Inc. awards the Copperstone Prefeasibility Study to Hard Rock Mining Consultants teamed with Tierra Group International, Ltd.

22 June 2017 – Tierra Group hosts their 5th Annual Client Appreciation International Golf Invitational at Hiwan Golf Club in Evergreen, Colorado

8-9 June 2017 – Tierra Group to attend Elko Mining Expo in Elko, Nevada

1 June 2017 – Tierra Group publishes “Tailings Stewardship: Training from the Tailings Beach to the Board Room

1 June 2017 – Jim Willis promoted to Sr. Project Manager

29 May 2017 – 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 2017 – Tierra Group signs Master Services Agreement with Kinross Gold Corp. to serve as independent experts on their corporate tailings review board

10 April 2017 Jesús Luis Torres joins Tierra Group International, SAC as a Junior Geological Engineer in Lima, Peru

3 April 2017 – Tierra Group signs contract with Minera Metalúrgico del Boleo S.A. to provide an independent, tailings facility design peer review at their Boleo Mine in Baja Sur Mexico

8 March 2017 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 2017 – Tierra Group International’s Matt Fuller to sit on Stillwater Mining’s East Boulder Mine tailings storage facility Independent Review Panel

5 March 2017  – Tierra Group attends Prospectors and Developers of Canada (PDAC) Annual Meeting in Toronto

3 March 2017 – Tierra Group awarded leak detection project with Timmins Gold Corp. at their San Francisco Mine in Sonora, Mexico

19-22 February 2017 – Tierra Group International attends SME Annual Meeting in Denver, CO

05 February 2017 – 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 2017 – Tierra Group International, Ltd. helps Morumbi Resources Inc. successfully secure a $15M insurance policy for their Tailings Storage Facilities at Mina El Mochito, Honduras

16 January 2017 – Juan Carlos Ramirez joins Tierra Group International, SAC as a Junior Geological Engineer in Lima, Peru

12 January 2017 – Tierra Group International, Ltd. awarded project to provide Corporate Tailings Stewardship Services at Couer Mining, Inc.’s Palmarejo Mine in Chihuahua, Mexico

9 January 2017 – Tierra Group International, SAC awarded contract at Barrick Misquichilca’s Mina Lagunas Norte to perform hydraulics and water quantification engineering study

1 January 2017 – Tierra Group International, Ltd. celebrates its fifth anniversary!

15 December 2016 – 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 2016 – Tierra Group attends American Exploration & Mining Association Annual Conference 5-9 Dec in Reno, Nevada

4 December 2016 – Tierra Group attends SME Arizona Conference 4-5 Dec in Tucson, Arizona

16 November 2016  Tierra Group International SAC pays off business loan from Tierra Group International, Ltd. Tierra Group SAC is now a “debt-free” Tierra Group company with a successful, and profitable, business standing in Lima, Peru after just 29 months

11 November 2016 – Tierra Group International, Ltd. is awarded the Engineer of Record role at Barrick’s McLaughlin Mine in Northern California

7 November 2016Troy Holm joins Tierra Group International, Ltd. as Sr. Civil 3D Designer in Lakewood, CO

3 November 2016– Tierra Group is awarded Geotechnical Instrumentation Monitoring project with Tintaya-Antapaccay in Perú

18 October 2016 – Julio Juarez presents Tailings Stewardship Services at the Colegio de Ingenieros del Peru in commemoration of Geological Engineering Week in Lima

14 October 2016 – Tierra Group contracts with Gold Resource Corporation to perform a peer review of the Isabella – Pearl Heap Leach Facility Design in Nevada

5 October 2016Tierra 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 2016 – 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

1 October 2016 – Tierra Group International, SAC expands its office space in Lima, Peru

30 September 2016 – Alcides Panez joins Tierra Group International, SAC as a Civil Engineer in Lima, Peru

23 September 2016Marvin 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.

19 September 2016Tierra Group is awarded a Tailings Storage Facility Optimization Study at Texel Capital, Ltd.’s Orotex Mine Project in Costa Rica

7 September 2016Pete Kowalewski attends the Nevada Mining Association Convention September 7th – 10th in Lake Tahoe, Nevada

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

9 August 2016Tierra Group contracts with B2Gold to perform the Tajo Crimea Investigation and Preliminary Evaluation at La Libertad Mine in Nicaragua

11 July 2016 Tierra Group contracts with Endeavour Silver to provide Tailings Stewardship Services at El Cubo, Bolanitos and Guanacevi mines in Mexico

24-25 June 2016 – Tierra Group International hosts their Semi-Annual Meeting (SAM) in Lakewood, CO

23 June 2016 – Tierra Group will host their 4th Annual Client Appreciation International Golf Invitational at Hiwan Golf Club in Evergreen, Colorado

22 June 2016 – Tierra Group International, SAC received a grade of A from SGS certifying compliance with Antappacay/Glencore’s internal, legal business status, procedures, health & safety, logistics and other quality standards. Receipt of the pending Compliance Certificate marks an important and significant milestone in Tierra Group’s development, in Perú, and on the international stage.

15 June 2016 – Dessire Lopez joins Tierra Group International, Ltd. as an Administrative Intern in Lakewood, CO

10 June 2016 – Tierra Group signs engagement letter with Texel Capital, Ltd for the Orotex Mine Project in Costa Rica

6 June 2016 Sergio Castaneda joins Tierra Group International, Ltd. as an Engineering Intern in Elko, NV

1 June 2016 – Josh Prettyman is promoted to Staff Engineer III

27 May 2016Jared Purdy obtains his California PE license

23 May 2016Bob Beach joins Tierra Group International, Ltd. as Staff Engineer Technician in Lakewood, CO

13 April 2016Nettie Quintana joins Tierra Group International, Ltd. as Senor Engineering Technician in Elko, NV

29 March 2016 – The Electrum Group awards Tierra Group Los Lirios Water Characterization and Baseline Study Project in Honduras

28 March 2016 – 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 2016Tierra Group attends Prospectors and Developers of Canada (PDAC) Annual Meeting in Toronto

3 March 2016– Tierra Group becomes an Organizing Committee Member and Sponsor of the Tailings and Mine Waste Conference

23 February 2016 – 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

22-24 February 2016 Tierra Group attends SME Annual Meeting in Phoenix, Arizona

22 February 2016Elizabeth Ayala joins Tierra Group International, S.A.C. as Assistant to the General Manager in Lima, Perú

1 January 2016Phil Brown joins Tierra Group International, Ltd. as Senior Hydrologist/Engineer in Lakewood, CO

1 January 2016 Tierra Group International, Ltd. Celebrates its 4th Anniversary!

30 December 2015 – Joshua Prettyman obtains Professional Engineer licensure in Utah

21 December 2015 – 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 2015 – Tierra Group is awarded B2Gold’s Fekola Mine Construction Project Earthworks and Concrete Construction Quality Control (CQC) services contract in Mali, Africa

3 December 2015 – Jiny Carrera obtains Permanent Resident Status in the United States

25 November 2015 – Tierra Group signs Master Services Agreement with JDS Mining & Energy to perform an EIA Review for the Buritica Project in Antiocha, Colombia

11 November 2015 – 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 2015 – Carla Arllentar joins Tierra Group International, S.A.C. as Administrative Assistant in Lima, Perú

4 November 2015 Tierra Group awarded Construction Quality Assurance Services project at B2Gold’s Fekola Mine Development Project in Western Mali

26 October 2015 – Matt Fuller presents “Tailings Stewardship – Genuine Corporate Responsibility” at Tailings and Mine Waste 2015 Conference in Vancouver, B.C.

19 October 2015 Tierra Group signs Master Services Agreement with Lode Star Gold Inc. in Goldfield, Nevada

6-9 October 2015 – Francisco Barrios attends Expomin in Acapulco, Mexico

16 September 2015 – Justin Knudsen presents a session entitled “Containment for Mining Applications” at the Fabricated Geomembrane Institute Short Course: “Current Advances & Trends in Containment Technology” September 16th in Salt Lake City, UT

12 September 2015 – Pete Kowalewski and Francisco Barrios attend 3rd International Conference on Heap Leach Solutions, September 12th-16th in Reno, Nevada

9 September 2015 – Pete Kowalewski attends the Nevada Mining Association Convention September 9th – 12th in Reno, Nevada

29 August 2015 – 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 2015Tierra Group signs Master Services Agreement with Newmont Mining

18 August 2015 – Tierra Group signs Master Services Agreement with Sierra Metals dba Minera Corona S.A. to provide comprehensive geotechnical and water resources design and construction assistance at the Yauricocha Mine in Peru.

28 July 2015 Tierra Group donates sports equipment to B2Gold’s El Limón Youth Sports League

13 July 2015Kristina Rozelle joins Tierra Group as Administrative Assistant in the Elko office

1 July 2015Tierra Group signs Master Services Agreement with Empresa Minera Paititi S.A. to provide Tailings Stewardship service at their Don Mario Mine in Bolivia

1-4 July 2015 – Matt Fuller and Jim Shultz attend Colegio de Geologia de Costariccense Conference

25 June 2015Tierra Group hosts their 3rd Annual Client Appreciation International Golf Invitational at Hiwan Golf Club in Evergreen, Colorado

24 June 2015Tierra Group signs Master Services Agreement with Crocodile Gold Corp. in the Northern Territory of Australia

17 June 2015 – 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 2015 – Marco Noa joins Tierra Group as Civil-Hydrological Engineer in Lima, Perú

3 June 2015 Tierra Group hosts Open House during the 30th Annual Elko Mining Expo in Elko, Nevada

1 June 2015 – Matt Fuller publishes article in Mining Record: Tailings Stewardship – Genuine Corporate Responsibility

1 June 2015 – Francisco Barrios, P.E., MBA joins Tierra Group as Project Manager in our Southwest Region office in Arizona

11 May 2015 – 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 2015Joshua Prettyman passes the Utah PE Exam

24 April 2015 – 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 2015Tierra Group has been accepted into the Asociación Costarricense de Geotécnia in San Jose, Costa Rica

10 April 2015 – Elko office moves to a new location: Effective April 20th we will be located at 222 9th Street

26 March 2015 – Santacruz Silvers’ Rosario Mine resumes production upon completing Tierra Group’s design-build Geotube Tailings Containment Facility

11 March 2015 – Tierra Group to determine feasibility of re-commissioning tailings storage facility at Santacruz Silver Rosario Mine in Mexico

1-4 March 2015Matt Fuller attends PDAC Convention in Toronto, Canada

16-18 February 2015Tierra Group attends SME in Denver, Colorado

5 January 2015 – Daniel Granda, PE joins Tierra Group as Project Geotechnical Engineer in Lakewood office

1 January 2015 – Tierra Group International celebrates its 3rd anniversary!

30 December 2014 –  Tierra Group closes on a new building in Elko, Nevada

19 December 2014 – 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

15 December 2014 – Michael (Mike) Nelson, P.E. joins Tierra Group as a Senior Consultant in Lakewood office

9 November 2014 – 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 2014 Johnny Prettyman joins Tierra Group International as Staff Engineer in Salt Lake City office

14 October 2014Tierra Group signs new contract with Aurcana Minerals at La Negra Mine in Querétaro, Mexico

20 September 2014Tierra Group International, Ltd’s company logo receives Registered Trademark status with the United State Patent and Trademark Office

16 September 2014Justin Knudsen obtains his Missouri PE

15 September 2014Vladimir Miñano joins Tierra Group International, S.A.C. as Project Engineer in Lima, Perú

2 September 2014Matt Fuller to present keynote address at Geosynthetics in Mining Conference September 8th – 11th in Vancouver, Canada

2 September 2014Pete Kowalewski and Matt Fuller attend the National Mining Association Annual Meeting September 3rd – 5th in Reno, NV

1 September 2014 – On September 1st, Tierra Group International, S.A.C. opens office at Avenida Larco 853, Oficina 301, Miraflores-Lima, Perú

25 August 2014Tierra Group kicks off Aranzazú project in Zacatecas, Mexico

23 August 2014Tierra Group signs contract with American Gypsum in Gypsum, Colorado

6 August 2014 – Pictures of 2nd Annual Client Appreciation International Golf Invitational

22 July 2014 – Lily Málaga joins Tierra Group International, S.A.C. as Administrative Manager in Lima, Perú

1 July 2014  -Tierra Group International, Ltd announces the opening of Tierra Group International, S.A.C. in Lima, Perú

1 July 2014 – Julio Juarez joins Tierra Group  as General Manager of Tierra Group International, S.A.C. in Lima, Perú

26 June 2014 –  Tierra Group  hosts their 2nd Annual Client Appreciation International Golf Invitational at Hiwan Golf Club in Evergreen, Colorado

13 May 2014 – Beth Knudsen joins Tierra Group as Administrative Manager in Lakewood office

30 April 2014 – Tierra Group  signs Master Services Agreement with The Doe Run Company to provide multiple site tailings engineering stewardship services

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

4 April 2014 – Tierra Group signs contract with Aura Minerals, Inc. at their San Andres Mine in Honduras

27 February 2014  Tierra Group signs contract with Gold Resource Corporation at their El Aguila Mine in Mexico

26 February 2014 Gene Bosley presents Technical Paper at SME in Salt Lake City.

31 December 2013 Tierra Group celebrates its second anniversary.

9 December 2013 Michael Goodhue passes his PE Exam.

20 November 2013  Tierra Group signs new contract with Klondex Gold & Silver Mining Company; our 16th customer.

22 July 2013Tierra Group signs new contract with Nyrstar Mexico for the Campo Morado Operation.

18 July 2013  Tierra Group signs new contract with B2Gold for Masbate Water Treatment Plant Design
                            in the Philippines.

1 July 2013 – Jiny Carrera, Project Geotechnical Engineer, joins Tierra Group Team.

26 June 2013 – Tierra Group signs contract with Sterling Gold Mining Corporation, our 15th customer.

24 June 2013Tierra Group signs contract with Rosemont Copper, our 14th Customer.

24 June 2013 – Sam Holcomb, Staff Engineer, joins Tierra Group Team.

20 June 2013  Tierra Group signs contract with Sonoran Resources for La Bolsa project.

12 June 2013 Tierra Group signs contract with Waterton Global Mining Company, our 13th customer.

6 June 2013Tierra Group signs contract with Jaguar Mining, Inc., our 12th customer.

01 June 2013Tierra Group completes Mine Planning Optimization Study in the Philippines.

28 May 2013Sean Robinson, Civil Engineer, joins Tierra Group Team.

13 May 2013Andrew Leman, Staff Engineer, joins Tierra Group Team.

05 May 2313Kevin Sessions transfers from Salt Lake City to Elko office.

13 March 2013Tierra Group completes a Blast Vibration Study for International Minerals.

03 March 2013Tierra Group’s Salt Lake City office moves to its new location.

27 February 2013 – Tierra Group signs contract with Midas Gold, our 11th Customer.

2 February 2013 – Brittany Bruder, Administrative Assistant, joins Tierra Group Team.

1 February 2013 – Tierra Group signs contract with International Minerals Corporation, our 10th Customer.

31 January 2013Tierra Group registers in the State of Arizona.

31 December 2012  Tierra Group celebrates 1-year Anniversary.

19 September 2012 – Tierra Group Colombia registers in the Bogotá Chamber of Commerce.

1 September 2012Tierra Group registers in the Idaho Board of Engineers.

7 July 2012 – Tierra Group signs a contract with Knight Piésold Denver, our 9th Customer.

26 June 2012 – Tierra Group signs contract with Great Basin Gold Ltd., our 8th Customer.

18 June 2012 – Tierra Group signs contract with Douglas County Colorado our 7th Customer.

11 June 2012 – Todd S. Street, PE, Project Civil Engineer,  joins Tierra Group Team.

1 May 2012 – Troy W. Denning, PE, Senior Civil Engineer, joins Tierra Group Team.

30 April 2012 – Tierra Group begins working directly with Sonoran Resources, LLC, our 6th Customer.

4 April 2012 – Tierra Group signs contract with Black Dolphin Consulting, LLC, our 5th Customer.

27 February 2012 – Sheila Kluck, PE, PG, Senior Project Geotechnical Engineer, joins Tierra Group Team.

20 February 2012 – Michael S. Goodhue, E.I.T., Staff Engineer, joins Tierra Group Team.

20 February 2012 – Joshua A. Prettyman, E.I.T, Staff Engineer, joins Tierra Group Team.

20 February 2012 – Kevin Session, E.I.T., Staff Civil Engineer, joins Tierra Group Team.

15 February 2012 Tierra Group signs contract with Barrick Goldstrike Mines Inc., our 4th Customer.

9 February 2012 – Marybeth Dowell, Environmental Scientist, joins Tierra Group Team.

24 January 2012 – Tierra Group signs contract with Nyrstar Honduras, our 3rd Customer.

23 January 2012 – Justin W. Knudsen, PE, Senior Civil/Geotechnical Engineer, joins Tierra Group Team.

23 January 2012 – Gene Bosley II, PE, Senior Civil/Water Resources Engineer, joins Tierra Group Team.

23 January 2012 – Adrien Butler, PE, Project Civil Engineer, joins Tierra Group Team.

23 January 2012 – James A. Willis, PE, Project Engineer, joins Tierra Group Team.

23 January 2012 – Tracey L. Rozelle, Project Assistant II, joins Tierra Group Team.

17 January 2012 – Tierra Group signs contract B2Gold Corp., our 2nd Customer.

10 January 2012 – Tierra Group signs contract with Silver Standard Resources, Inc., becoming our 1st Customer!

7 January 2012 – Jared Purdy, PE, Mining / Geotechnical Engineer, joins Tierra Group Team.

1 January 2012 – Kari Kowalewski, Administrative Assistant, joins Tierra Group Team.

1 January 2012 – Martha Sanchez-Hayre, Administrative Manager, joins Tierra Group Team.

1 January 2012 – Becky Kohl-Fuller, Finance Manager, joins Tierra Group Team.

1 January 2012 – Peter E. Kowalewski, PE, Principal Engineer, joins Tierra Group Team.

1 January 2012 – Matt Fuller, CPG, LEG, Principal Engineering Geologist, joins Tierra Group Team.

1 January 2012 – Tierra Group’s 1st day in business!

8 November 2011 – Tierra Group International, Ltd. files Articles of Incorporation with the Colorado Secretary of State.