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' LiVl Vl' 1'iV V1?iJV - - <br />Figure Page <br />1.1 Overview of the upper Colorado and Gunnison rivers . .............:..... 1-2 <br />1.2 Overview of the Gunnison River basin ............................... 1-4 <br />2.1 Relative contribution of major tributaries to the Colorado River at <br /> the Colorado-Utah state line and the Gunnison River near Grand <br /> Junction, Colorado.. ............. ........:............:... 2-2 <br />2.2 Cumulative reservoir storage capacity as a percentage of average <br /> annual streamflow for the Colorado River near Cameo and the <br /> Gunnison River near Grand Junction. ............................... 2-4 <br />2.3 Relationship of peak flow to unregulated April-July inflow to the <br /> Colorado River at the USGS gage near Cisco, for three periods: <br /> 1914-1936,1937-1965, and 1965-1992 . ............................ 2-5 <br />2.4 Change in peak flow and annual mean flow in the Gunnison River <br /> near Grand Junction after construction of the Aspinall Unit ............... 2-7 <br />2.5 Effect of the Aspinall Unit on mean-monthly flows; of the Gunnison <br /> River below the Gunnison Tunnel .............. .......... :. . 2-9 <br />2.6 Probability of different levels of unregulated April-July inflow to <br /> Blue Mesa Reservoir, Crystal Reservoir, and to the Gunnison River <br /> near Grand Junction, based on the historical record . ..................: 2-10 <br />2.7 Relationship of peak river flow downstream from Gunnison Tunnel to <br /> unregulated April-July inflow to Blue Mesa Reservoir for two water- <br /> development periods - pre Aspinall Unit, 1937-1965 and post <br /> Aspinall Unit, 1966-1997 ................. ................... . 2-I1 <br />2.8 Relationship of peak flow in the Gunnison River near Grand <br /> Junction, to unregulated April-July inflow to the same location for <br /> two water-development periods - pre Aspinall Unit, 1937-1965 and <br /> post Aspinall Unit, 1966-1997 . ................................... 2-12 <br />2.9 Mean-daily river flow of the Gunnison River downstream from <br /> Crystal Reservoir during April-August, 1992-1998" ..................:: 2-17 <br />Final.Report ix <br />July 2003