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1 <br />1 <br />1 <br /> <br /> <br />50 <br />40 <br />30 <br />20 <br />10 <br />0 <br />50 <br />c 40 <br />30 <br />o- <br />20 <br />?- 10 <br />0 <br />50 <br />40 <br />30 <br />20 <br />10 <br />0 <br />1917- <br />PEI E== <br />9 1938 <br /> _ <br />1939- 1965 <br /> <br />1966- <br />F 9 1988 <br /> <br />0-5 5- 10- 15- 20- 25- 30- <br />10 15 20 25 30 35 <br />Maximum-Annual Discharge <br />(5,000 CFS Groups) <br />Figure 3. Frequency distribution of maximum-annual discharge (highest <br />mean-daily streamflow for the year) for three time periods: <br />early development [1917-1938], middle development [1939-1965], <br />and post-Aspinall development [1966=1988] for-the Gunnison <br />River near Grand Junction, Colorado. Streamflows were <br />recorded at the U.S.G.S. stream gage at Whitewater, Colorado. <br />(from McAda and Kaeding 1991). <br />8