. A biological survey of Colorado. Natural history Colorado; Mammals Colorado; Trees Colorado. North American Fauna No. 33, U. S. Dept Agr. Biological Survey, Plate Fig. 2.—Arctic-Alpine Zone on the Saguache Range Near St. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Cary, Merritt, 1880-1918; United States. Bureau of Biological Survey. Washington : Government Printing Office

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