Trusted Worldwide

Watts, Griffis and McOuat Limited ("WGM") is Canada's longest running independent firm of geological and mining consultants providing value-added professional services of the highest standards to the global mineral resource industry.

Our client list is as vast as our experience. From small cap junior exploration companies to globally diversified metal producers; private venture capital firms to international investment funds; and local stakeholders to governments of every level - WGM has you covered.

Our Services

From grass-roots exploration through to mine closure, our expertise in project management, property valuations, Mineral Resource and Reserve estimates, NI 43-101 and JORC technical reports, and due diligence reviews has distinguished WGM as the most trusted name in exploration and mining since 1962.



  • Mineral Resource and Reserve Estimates and Audits
  • NI 43-101 and JORC Compliant Technical Reports
  • Property Evaluations
  • Exploration Project Management
  • Remote Sensing and GIS Services
  • Database Management
  • Mineral Valuations
  • Due Diligence Reviews
  • Expert Witness Services
  • Fairness Opinions
  • Securities Compliance (NI 43-101, JORC and other)
  • Corporate Social Responsibility Programs
  • Safety Programs and Audits



  • Metallurgical Investigation and Flowsheet Design
  • Mineral Resource and Reserve Estimates and Audits
  • NI 43-101 and JORC Compliant Technical Reports
  • Strategic Mine Planning and Design
  • Independent Qualified Person Review
  • Institutional Strengthening
  • First Nations Services


In the News

WGM Selected for Nigerian Exploration Program | Nigeria- (March 28th, 2014) WGM is pleased to announce that it has been selected for a full scale gold exploration program in Nigeria. (More Information)

Jack McOuat Induction Video | CMHF Ceremony - (January 16th, 2014) Watch the introductory video to Jack McOuat's induction to the Canadian Mining Hall of Fame.

Lac Otelnuk Resources Released | Toronto - (October 30th, 2013) WGM's mineral resource estimate for Adriana Resources' Lac Otelnuk iron ore property in Nunavik indicates more than 20B tonnes of resources. (More Information)


Click the links below to subscribe to WGM's various RSS Feed updates:

Uranium Insights


CIM Convention | Vancouver - (May 12th, 2014) WGM President, Joe Hinzer, will be presenting "Challenges for Chinese valuators" in the Mining for Accountants, Bankers, Brokers & Lawyers technical session, held at the CIM Convention. (More Information)

Career Opportunities

WGM is currently looking for qualified professional candidates for our Toronto office. Click here for more information.


Copyright © 2014 Watts, Griffis and McOuat Limited | Geological and Mining Consultants