| Summary: | Bibliography: p. 13-15. Mode of access: Internet. Bound with this are: Lead, copper, molybdenum, and zinc geochemical anomalies south of the Summitville District, Rio Grande County, Colorado / by William N. Sharp and James L. Gualtieri Generalized hydrology of prairie potholes on the Coteau du Missouri, North Dakota / by Wm. S. Eisenlohr, Jr., and Charles E. Sloan Lead, zinc, and silver deposits at Bowser Creek, McGrath A-2 quadrangle, Alaska / by Bruce L. Reed and Raymond L. Elliott U.S. Geological Survey heavy metals program progress report 1966 and 1967 An atomic-absorption method for the determination of gold in large samples of geologic materials / by Gordon H. VanSickle and Hubert W. Lakin Utilization of humus-rich forest soil (mull) in geochemical exploration for gold / by Gary C. Curtin [and others] Favorable areas for prospecting adjacent to the Roberts Mountains thrust in southern Lander County, Nevada / by John H. Stewart and Edwin H. McKee Occurrences of gold and other metals in the Upper Chulitna District, Alaska / by C.C. Hawley and Allen L. Clark Cassiterite in gold placers at Humboldt Creek Serpentine-Kougarok area, Seward Peninsula, Alaska / by C.L. Sainsbury [and others] Tertiary gold-bearing channel gravel in northern Nevada County, California / by Donald W. Peterson [and others] Rutile and topaz in Precambrian gneiss, Jefferson and Clear Creek Counties, Colorado / by Douglas M. Sheridan, Richard B. Taylor, and Sherman P. Marsh Reports and maps of the Geological Survey released only in the open files, 1968 / by Betsy A. Weld, Margaret S. Griffin, and George W. Brett Geochemical anomalies and metalliferous deposits between Windy Fork and Post River, southern Alaska range / by Bruce L. Reed and Raymond L. Elliott Suggested areas for prospecting in the central Koyukuk River region, Alaska / by Thomas P. Miller and Oscar J. Ferrians, Jr.
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