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USGS1981

Hydrologic data for the Cache Creek-Bear Thrust environmental impact statement near Jackson, Wyoming

Information on the quantity and quality of surface and ground water in an area of concern for the Cache Creek-Bear Thrust Environmental Impact Statement in northwestern Wyoming is presented without interpretation. The environmental impact statement is being prepared jointly by the U.S. Geological Survey and the U.S. Forest Service and concerns proposed exploration and development of oil and gas on leased Federal land near Jackson, Wyoming. Information includes data from a gaging station on Cache Creek and from wells, springs, and miscellaneous sites on streams. Data include streamflow, chemical and suspended-sediment quality of streams, and the occurrence and chemical quality of ground water. (USGS)

Open-File Report↗

USGS1978

Data for floods of May 1978 in northeastern Wyoming and southeastern Montana

Severe flooding in northeastern Wyoming and southeastern Montana in May 1978 is described by tables of data, graphs, and photographs. Flood peaks were determined at 162 sites in the flooded area. At most of the sites, peak discharges were determined from existing stage-discharge relationship curves, and at 30 of the sites indirect flow measurements were made. At 19 sites, the May 1978 peak discharge exceeded the previous peak of record and also exceeded the computed 100-year frequency flood. (Woodard-USGS)

Open-File Report↗