Looking down San Juan Canyon at the mouth of Slickhorn gulch. San Juan County, Utah. 1921.
Dates
Date Taken
1921
Summary
Looking down San Juan Canyon at the mouth of Slickhorn gulch; Coconino sandstone; Supai (?) formation and Goodridge formation (top to bottom) exposed, the rapid is produced by a boulder bar at mouth of Slickhorn gulch. Photo by Robert N. Allen. San Juan County, Utah. 1921. Plate 4-C in U.S. Geological Survey. Professional paper 132. 1925. Plate 18-B in U.S. Geological Survey. Bulletin 751. 1915. Plate 6-A in U.S. Geological Survey. Water-supply paper 538. 1924.
Summary
Looking down San Juan Canyon at the mouth of Slickhorn gulch; Coconino sandstone; Supai (?) formation and Goodridge formation (top to bottom) exposed, the rapid is produced by a boulder bar at mouth of Slickhorn gulch. Photo by Robert N. Allen. San Juan County, Utah. 1921. Plate 4-C in U.S. Geological Survey. Professional paper 132. 1925. Plate 18-B in U.S. Geological Survey. Bulletin 751. 1915. Plate 6-A in U.S. Geological Survey. Water-supply paper 538. 1924.
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