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Field checklist of birds of the Mount Evans Corridor : from Echo Lake at 10,600 feet to the summit of Mount Evans at 14,264 feet

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By: Colorado. Division of Wildlife. - Clear Creek Ranger District (Colo.)

Publication info: Idaho Springs, CO, Forest Service USDA, Arapaho/Roosevelt National Forests, Clear Creek Ranger District, 1993

Holding Institution: U.S. Department of Agriculture, National Agricultural Library