Exposures of the lower two thirds of the Tongue River Member of the Paleocene Fort Union Formation were measured along the Powder River valley in southeastern Montana in the Moorhead and Birney-Broadus coalfields. This report documents the stratigraphic variations, lateral continuity of partly eroded coal beds along the line of section, and shows ten sections for the Tongue River Member in this s

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Reconnaissance geologic map of the Alamo Mesa West Quadrangle, San Juan County, New Mexico

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Reported occurrences of platinum in the U.S.S.R.

Restored stratigraphic cross sections and coal correlations in the Tongue River member of the Fort Union Formation, Powder River area, Montana

U.S. Geological Survey

U.S. Department of the Interior