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<br /> Table 6. Sightings of bighorn sheep in Grand Canyon during pre-dam river trips. <br /> Year Date Trip Location Number of Source <br /> Sheep <br /> 1869 Aug-Sep Powell Grand Canyon 0 Cooley, 1988 <br /> 1872 Aug 27 Powell Near Cardenas Creek 2 Dellenbaugh, 1908 <br /> 1890 Feb5 Stanton Bright Angel Creek tracks Unpublished diary <br />. Feb 27 Stanton Whitmore Wash 15 Unpublished diary <br /> 1896 Oct 25 Flavell near Fossil Canyon 1 Flavell, 1987 <br />. Oct 25 Flavell near Deer Creek 2 Flavell, 1987 <br /> 1909 Nov9 Stone Above Havasu Creek 5 Stone, 1932 <br /> Nov 10 Stone NationallMohawk Canyons 1 Stone, 1932 <br /> 1911 Dec 28 Kolb Deer Creek 1 Unpublished diary <br /> Jan 12 Kolb About mile 265 5 Unpublished diary <br /> 1923 Sep6 USGS Specter Chasm tracks Unpublished diary <br /> Sep 8 USGS mile 133 Unpublished diary <br /> Sep 13 USGS mile 152 2 Unpublished diary <br /> Oct 1 USGS Granite Springs Canyon Unpublished diary <br /> 1937 Oct-Nov Campbell Grand Canyon 0 Unpublished diary <br /> Oct-Nov Sharp Grand Canyon 3 Unpublished diary <br /> 1938 July 29 Nevills Diamond Creek Unpublished diary <br /> 1938 Oct Holmstrom Grand Canyon 0 Unpublished diary <br /> Johnson Grand Canyon 0 Unpublished diary <br /> 1940 Aug Nevills Grand Canyon 0 Goldwater, 1940 <br /> 1941 July Nevills Grand Canyon 0 Unpublished diary <br /> 1942 July 27 Nevills National Canyon 7 Unpublished diary <br /> July 27 Marston Fern Glen Canyon 7-8 Unpublished diary <br /> July 28 Nevills Whitmore Wash 5 Unpublished diary <br /> July 28 Marston Whitmore Wash 5 Unpublished diary <br /> July 29 Marston Spring Canyon Unpublished diary <br /> 1947 July Nevills Grand Canyon 0 Unpublished diary <br /> 1948 July Nevills Grand Canyon 0 Unpublished diary <br /> July 24 Doerr Surprise Valley dung Unpublished diary <br /> July 26 Doerr mile 190 Unpublished diary <br /> 1949 J ul y23 Nevills Mile 122 9 Unpublished diary <br /> 1950 July Wright Grand Canyon 0 Unpublished diary <br />.. <br /> 1951 July 23 Wright mile 144 several Unpublished diary <br /> 1952 July Wright Grand Canyon 0 Unpublished diary <br />J 1953 July Wright Grand Canyon 0 Unpublished diary <br /> 1954 June Marston Grand Canyon 0 Unpublished diary <br /> 1955 June 28 Reilly Elves Chasm 4 Unpublished diary <br /> July 15 Wright Elves Chasm 3 Unpublished diary <br /> 1956 June-July Reilly Grand Canyon 0 Unpublished diary <br /> July Wright Grand Canyon 0 Unpublished diary <br /> 1957 June Reilly Grand Canyon 0 Unpublished diary <br /> <br />SPECIFIC CHANGES OBSERVED IN GRAND CANYON 25 <br />