Featured Employee

Justin W. Knudsen, P.E.

Consultant III

Mr. Knudsen is a Professional Engineer (Civil/Geotechnical B.S. and M.S.) and project manager with more than 14 years of experience in the mining industry applying his geotechnical expertise designing…Read more (Español)

Previously Featured Employees

Matthew L. Fuller, C.P.G., L.E.G., P.Geo

Founding Principal

Engineering Geologist

Matt Fuller is a Founding Principal of Tierra Group International, Ltd. and an Engineering Geologist. Matt’s professional technical experience spans more than 30 years providing geological, geotechnical, environmental consulting services to the international mining industry. Matt’s areas of expertise include: Read More  (Español)

Peter E. Kowalewski, P.E.

Founding Principal

Principal Engineer

Mr. Kowalewski is a Principal Engineer with over 25 years of experience in hydrology and hydraulics as well as geotechnical engineering of mine waste containment facilities such as heap leach facilities and tailings dams. Areas of specialty include: Read more (Español)