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<br />
<br />
<br /> 5 10
<br /> . I
<br /> Mi
<br />0 5 10
<br />t . ~
<br /> Km
<br />
<br />~
<br />~
<br />-.J
<br />CJ
<br />~
<br />~
<br />~"l'
<br />o
<br />
<br />ROCKS
<br />
<br />Figure 7, Green River in vicinity of Canyonlands National Park, Utah. Mile marks
<br />shown on Green River as surveyed and reported by Herron (1917).
<br />
<br />1871
<br />
<br />1889
<br />
<br />1891
<br />1905
<br />1909
<br />1911
<br />1914, 1921
<br />
<br />1914
<br />
<br />1921
<br />1923
<br />1927
<br />1940
<br />
<br />1951-1953,1955
<br />1968
<br />
<br />1975
<br />1976
<br />
<br />Year
<br />
<br />Datable evidence
<br />
<br />TABLE 1. DATE-SPECIFIC EVIDENCE
<br />
<br />Source
<br />
<br />Second j, W. Powell expedition,
<br />photos
<br />F. Brown-R. B, Stanton expedition,
<br />photos
<br />Paddlewheel steamer traffic, photos
<br />Paddlewheel steamer traffic, photos
<br />j, F, Stone expedition, photos
<br />Kolb brothers expedition, photos
<br />E, C. LaRue (Bureau of Reclamation)
<br />survey, photos
<br />W, H. Herron (Bureau of
<br />Reclamation, USGS) survey, maps
<br />S. Paige, photos
<br />USGS Birdseye expedition, photos
<br />C. L. Eddy expedition, photos
<br />N, D. Nevilles-B, M, Goldwater
<br />expedition, photos
<br />USGS, large-scale aerial photos
<br />USGS, E, M, Shoe maker-H , G,
<br />Stephens expedition, photos
<br />USGS, small-scale aerial photos
<br />W, L. Graf, field research, measure-
<br />ment and photos
<br />
<br />
<br />USGS Photo Library, Denver, Colo.
<br />
<br />Stanton (1965)
<br />
<br />Local newspaper files
<br />Local newspaper files
<br />Stone (1932)
<br />Kolb (1927)
<br />USGS Photo Library, Denver, Colo.,
<br />and LaRue (1916)
<br />Herron (1917)
<br />
<br />USGS Photo Library, Denver, Colo,
<br />USGS Photo Library, Denver, Colo,
<br />Eddy (1929)
<br />Goldwater (1970)
<br />
<br />EROS Data Center, Sioux Falls, S.D,
<br />USGS Public Information Office,
<br />Reston, Va,
<br />USGS, Denver, Colo,
<br />University of Iowa, Department of
<br />Geography
<br />
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