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<br />The Green River below the Yampa <br />The USGS gauging station at Jensen, Utah, four miles south of the <br />Monument boundary, is the first point of discharge measurement on the Green <br />below the conf luence with the Yampa. The average discharge at this station <br />since the continuous record began in 1946 has been 4,355 cfs. The maximum <br />was recorded during June, 1957, at 36,500 cfs. The minimum was 102 cfs in <br />December, 1904. Prior to 1963, the peak base flow was 7,500 cfs. <br />Al"though the Green River is regulated by Flaming Gorge Dam, having a <br />daily fluctuation in discharge but little seasonal change, the input from <br />the Yampa gives the section below the confluence a distinct seasonal flood <br />period. The maximum discharges below the confluence are lower than those <br />prior to 1963 and there is now a daily fluctuation added to the seasonal <br />fluctuation. In recent years, the peak flows at Jensen have ranged from <br />7,360 to 22,100 cfs and low flows have been between 1,000 and 2,000 cfs. <br />19 <br />