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<br />002337 <br /> <br /> Table 6. Locations of cross-sections in Glen Canyon indicating which cross-sections were surveyed each <br /> year and the dates of those measurements if known. <br /> Distance <br /> from Dam <br /> Section Name (km) 1956 1959 1963 1965* 1975* 1983 1990* 2000 <br /> 20-30 <br /> R-20 1.0 18-Aug 25-Nov 21-May Sep Jul 19-0ct Sep lO-May <br /> R-19 1.5 18-Aug 21-May lO-May <br /> Glen Canyon Dam <br /> Gage Station <br /> Cableway 2.3 10-May <br /> 20-30 <br /> R-18 2.5 18-Aug 24-Nov 22-May Sep Ju1 18-0ct Sep 10-May <br /> R-17 3.4 18-Aug 22-May ll-May <br /> 20-30 <br /> R-16 4.3 15~Aug 23-Nov 22-May Sep Ju1 18-0ct Sep II-May <br /> R15A 4.6 23-May ll-May <br /> 20-30 <br /> R.15 5.8 15-Aug 30-Nov 23-May Sep Jul 19-0ct Sep ll-May <br /> 20-30 <br /> R-14 7.5 10-Aug 19-Nov 24-May Sep Ju1 19-0ct Sep <br /> R-13 8.9 10-Aug 24-May 27-Jan <br /> R-12 9.4 lO-Aug 24-May 27-Jan <br /> 20-30 <br />"""Y'Y"" R-11A 10.3 9-Aug 18-Nov 27-May Sep Jul 20-0ct Sep 27-Jan <br /> R-11 11.0 9-Aug 27-May 27-Jan <br /> 20-30 <br /> R-10 12.8 9-Aug 17-Nov 27-May Sep Jul 20-0ct Sep 26-Jan <br /> R-9 14.4 8-Aug 26-Jan <br /> 20-30 <br /> R-B 15.0 8-Aug 12-Nov Sep Jul 20-0ct Sep 26-Jan <br /> R-7 15.8 8-Aug 26-Jan <br /> R-6 16.8 7-Aug 26-Jan <br /> 20-30 <br /> R.5 18.4 7-Aug 9-Nov Sep Jul 21-0ct Sep 26-Jan <br /> R-4 20.1 7-Aug 25-Jan <br /> R-3 21.4 6-Aug <br /> R-2 22.6 6-Aug 25-Jan <br /> R-1 (Old Upper Lees 20-30 <br /> Ferry Cableway) 23.9 6-Aug 4-Nov Sep Ju1 21-0ct Sep 25-Jan <br /> Old Lower Lees Ferry <br /> Cableway 24.7 24-Jan <br /> Lees Ferry Cableway 25.4 24-Jan <br /> 20-30 <br /> R-O 27.8 6-Aug 29-0ct Sep Ju1 Sep 28-Jan <br /> * Exact measurement date not known. <br /> <br />5.0 Changes in the Topography of the Main-Channel Bed 29 <br />