Wind Bighorn Basin

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The Wind/Bighorn River basins are located in north-central to northwestern Wyoming located in 5 Wyoming counties encompassing nearly 23,000 square miles (fig.1). The Wind River is approximately 185 miles long before becoming the Bighorn River near Thermopolis Wyoming continuing 276 miles where it meets the Yellowstone River as a tributary. The Wind River basin and the Bighorn basin are often associated together due to the change of the name of the river while flowing northward in between the Owl Creek Mountains on the west and the Bridger Mountains to the east. The Wind River passes through the Wind River Canyon and becomes the Big Horn River at the Wedding of the Waters on the North side of the canyon. Annual precipitation in the basin comes …show more content…

Precipitation is the source for both groundwater and surface water in the Basin. Most flow in perennial streams is from snowmelt and rejected recharge from Mesozoic through Precambrian aquifers in the surrounding mountains and irrigation return flows from Quaternary and Tertiary aquifers (Taucher et al., 2012). The basins consumptive uses make up 37% of surface and ground water use and is used for agriculture, stock water, domestic/municipal, industrial/mining water, and reservoir evaporation (Taucher et al., 2012). The flow of surface water alters throughout the year as well as ground water. The monthly changes in flow are heavily reliant on the amount of precipitation that the area had received throughout the year. The most obvious occurrence is between April and August for the Wind-Bighorn River when average monthly flow rises from around 300cfs in April to 1,600cfs in June, and back down to 300cfs in August. This large spike can mostly be attributed to the melting of snow in the high country. Ground water released by springs drive up peak flow during this time of the year increasing total

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