Geology and mineral resources of the North-Central Montana Sagebrush Focal Area: Chapter D in Mineral resources of the Sagebrush Focal Areas of Idaho, Montana, Nevada, Oregon, Utah, and Wyoming

Scientific Investigations Report 2016-5089- D
Prepared in cooperation with the Bureau of Land Management
By:

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Summary

The U.S. Department of the Interior has proposed to withdraw approximately 10 million acres of Federal lands from mineral entry (subject to valid existing rights) from 12 million acres of lands defined as Sagebrush Focal Areas (SFAs) in Idaho, Montana, Nevada, Oregon, Utah, and Wyoming (for further discussion on the lands involved see Scientific Investigations Report 2016–5089–A). The purpose of the proposed action is to protect the greater sage-grouse (Centrocercus urophasianus) and its habitat from potential adverse effects of locatable mineral exploration and mining. The U.S. Geological Survey Sagebrush Mineral-Resource Assessment (SaMiRA) project was initiated in November 2015 and supported by the Bureau of Land Management to (1) assess locatable mineral-resource potential and (2) to describe leasable and salable mineral resources for the seven SFAs and Nevada additions.

This chapter summarizes the current status of locatable, leasable, and salable mineral commodities and assesses the potential of locatable minerals in the North-Central Montana SFA. The proposed withdrawal area that is evaluated in this report is located in north-central Montana, and includes parts of Fergus, Petroleum, Phillips, and Valley Counties.

Suggested Citation

Mauk, J.L., Zientek, M.L., Hearn, B.C., Jr., Parks, H.L., Jenkins, M.C., Anderson, E.D., Benson, M.E., Bleiwas, D.I., DeAngelo, J., Denning, P.D., Dicken, C.L., Drake, R.M., II, Fernette, G.L., Folger, H.W., Giles, S.A., Glen, J.M.G., Granitto, M., Haacke, J.E., Horton, J.D., Kelley, K.D., Ober, J.A., Rockwell, B.W., San Juan, C.A., Sangine, E.S., Schweitzer, P.N., Shaffer, B.N., Smith, S.M., Williams, C.F., and Yager, D.B., 2016, Geology and mineral resources of the North-Central Montana Sagebrush Focal Area: U.S. Geological Survey Scientific Investigations Report 2016–5089–D, 104 p., http://dx.doi.org/10.3133/sir20165089D.

ISSN: 2328-0328 (online)

Study Area

Table of Contents

  • Acknowledgments
  • Executive Summary
  • Introduction
  • Who Did the Work?
  • Description of Geology
  • Leasable Minerals
  • Locatable Minerals
  • Salable Minerals
  • Mineral Economics
  • Strategic and Critical Mineral Materials
  • References Cited
  • Appendixes 1–4

Additional publication details

Publication type Report
Publication Subtype USGS Numbered Series
Title Geology and mineral resources of the North-Central Montana Sagebrush Focal Area: Chapter D in Mineral resources of the Sagebrush Focal Areas of Idaho, Montana, Nevada, Oregon, Utah, and Wyoming
Series title Scientific Investigations Report
Series number 2016-5089
Chapter D
DOI 10.3133/sir20165089D
Year Published 2016
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Contributing office(s) Geology, Minerals, Energy, and Geophysics Science Center
Description Report: xvi, 104 p.; 12 Figures; 2 Appendixes
Larger Work Type Report
Larger Work Subtype USGS Numbered Series
Larger Work Title Mineral resources of the Sagebrush Focal Areas of Idaho, Montana, Nevada, Oregon, Utah, and Wyoming (Scientific Investigations Report 2016-5089)
Country United States
State Montana
Online Only (Y/N) Y
Additional Online Files (Y/N) Y