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~ 1 <br /> <br />LIST OF FIGURES <br />Figure <br />Page <br />1. Important features in the Upper Colorado and Gunnison River <br />subbasins. 3 <br />2. Estimated effect of the Aspinall Unit on mean, bi-monthly water <br />temperature at two locations in the Gunnison River and two <br />locations in the Colorado River. 13 <br />3. Average annual suspended-sediment load (tons/AF; upper) and mean <br />of the average suspended-sediment load for the pre- and post- <br />Aspinall periods (lower) in the. Gunnison River near Grand <br />Junction. Data summarized from Elliott and DeFeyter (1986). 15 <br />4. Double mass curve showing relation between annual suspended- <br />sediment load and annual stream discharge in the Colorado River at <br />the Cisco gage, water years 1930-1982. (excerpted from Thompson <br />1984) 16 <br />5. Peak streamflow (highest mean-daily streamflow for the year; <br />upper) and average peak streamflow for three periods (early <br />development [1917-1938]), middle development [1939-1965], and <br />post-Aspinall development [1966-1988]; lower [mean ± 1 SE, <br />minimum and maximum]) for the Gunnison River near Grand Junction, <br />Colorado, streamflow was recorded at the U:S.G.S. stream gage at <br />Whitewater. 17 <br />6. Peak streamflow (highest mean-daily streamflow for the year; <br />upper) and average peak streamflow for three periods (early <br />development [1914-1938]), middle development [1939-1965], and <br />post-Aspinall development [1966-1989]; lower [mean ± 1 SE, <br />minimum and maximum]) for the Colorado River at Cisco, Utah. <br />U.S.G.S. stream gage 09180500. 18 <br />7. Mean-monthly streamflow in the Gunnison (upper) and Colorado <br />(lower) rivers for three periods (early development [1914-1938], <br />middle development [1939-1965], and post-Aspinall development <br />[1966-1989]). 20 <br />8. Plot of geometric-mean catch per effort (C/E) versus maximum- <br />annual discharge for post-larval Colorado squawfish collected in <br />the Colorado River between river miles 0 and 110 during October, <br />1982-19$8. Lines indicate ± 1 standard error; numbers indicate <br />year of collection. Excerpted from McAda and Kaeding (1989). 26 <br />v <br />