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Performer: Geological Survey, Salt Lake City, UT. Water Resources Div. Performer: Utah Dept. of Natural Resources, Salt Lake City. Div. of Water Resources. Performer: Nevada Dept. of Conservation and Natural Resources, Lincoln County. Performer: Arizona Dept. of Water Resources, Phoenix. Performer: Bureau of Land Management, Phoenix, AZ.
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Color illustrations reproduced in black and white. Prepared in cooperation with Utah Dept. of Natural Resources, Salt Lake City. Div. of Water Resources., Nevada Dept. of Conservation and Natural Resources, Lincoln County., Arizona Dept. of Water Resources, Phoenix. and Bureau of Land Management, Phoenix, AZ.
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