TY - RPRT TI - Quantification of undiscovered mineral-resource assessment; the case study of U.S. Forest Service wilderness tracts in the Pacific mountain system AU - L. J. Drew AU - J. D. Bliss AU - R. W. Bowen AU - N.J. Bridges AU - D. P. Cox AU - H.H. DeYoung AU - J.C. Houghton AU - Steve Ludington AU - W. D. Menzie AU - N.J. Page AU - D. H. Root AU - D.A. Singer PY - 1984 DO - 10.3133/ofr84658 UR - https://pubs.usgs.gov/publication/ofr84658 ID - ofr84658 ER -