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Show 97 F. Utah The portion of the Lower Basin located in Utah lies in the extreme southwest corner of the State in part or all of four counties: Washington, Iron, Kane, and Garfield. This area is situated at the conjunction of the Colorado plateau country and the basin and range province of Nevada. In the lower parts, near the town of St. George, elevations are about 2,500 feet while in the higher portions elevations rise to 10,000 feet. On the upside and to the east of the Hurricane Fault, which runs through the Toquerville-Hur-ricane area, lies a high plateau. Drainage from this plateau is through narrow, deep, canyon-like channels. Population of the Utah portion of the Lower Basin exceeds 12,000. The principal city is St. George and other towns include Hurricane and Kanab.10 The principal streams and drainage basins in the area are: Johnson Creek, which flows into Kanab Creek in Arizona; Kanab Creek; the Virgin River System, which includes the Santa Clara River; and Beaver Dam Wash, which flows into the Virgin River in Arizona.11 Irrigation was first practiced in the area in the middle of the 19th Century by Mormon colonists.12 The main reservoir on the Santa Clara River is Baker Reservoir, which has a capacity of 1,150 acre-feet.13 The principal diversions on this stream are made from Windsor Dam through the Upper Santa Clara Bench Canal and the Santa Clara Fields Canal. Other smaller canals serve additional acreage along the River. The only trans-basin diversion in the region diverts part of the headwaters of the Santa Clara to the Great Basin area.14 10Tr. 17812-17813,17816 (Bingham); see Utah Ex. 1. nTr. 17814-17816 (Bingham). 12Tr. 17827 (Criddle). lsTr. 17922-17923 (Bingham). 14Tr. 17819-17821 (Bingham); see Utah Ex. 8. |
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Original Report: State of Arizona, complainant v. State of California, Palo Verde Irrigation District, Imperial Irrigation District, Coachella Valley County Water District, Metropolitan Water District of Southern California, City of Los Angeles, California, City of San Diego, California, and County of San Diego, California |