Natural tanks filled with runoff from rain. Canyonlands National Park, Utah. n.d.
Summary
Index card: Natural tanks filled with runoff from rain, serve as emergency sources of drinking water. Largest tank in foreground contains 4 feet of water and small freshwater shrimp. So-called tanks, or potholes, are formed partly by water dissolving the calcium carbonate cement and partly by wind or water removing the resulting loose sand grains. View is north toward Junction Butte from point about a mile south of the White Rim Trail. Red rocks in hill on right are in lower part of Moenkopi Formation. Canyonlands National Park. Grand County, Utah n.d. (Photo by E.N. Hinrichs) Note: Published as figure 17 in U.S. Geological Survey. Bulletin 1327. 1974; figure 18 in U.S. Geological Survey. Bulletin 1393. 1975. See also: lsw00013_cp
Summary
Index card: Natural tanks filled with runoff from rain, serve as emergency sources of drinking water. Largest tank in foreground contains 4 feet of water and small freshwater shrimp. So-called tanks, or potholes, are formed partly by water dissolving the calcium carbonate cement and partly by wind or water removing the resulting loose sand grains. View is north toward Junction Butte from point about a mile south of the White Rim Trail. Red rocks in hill on right are in lower part of Moenkopi Formation. Canyonlands National Park. Grand County, Utah n.d. (Photo by E.N. Hinrichs)
Note: Published as figure 17 in U.S. Geological Survey. Bulletin 1327. 1974; figure 18 in U.S. Geological Survey. Bulletin 1393. 1975.
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