[No. 1170. Phoebe's Arch near Palmer Lake. A man sits near a natural sandstone arch rock formation identified as Phoebe's Arch, near Palmer Lake, El Paso County, Colorado. Shows pine trees, rocks, a grassy meadow and wooded area]
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Beinecke Rare Book and Manuscript Library > [No. 1170. Phoebe's Arch near Palmer Lake. A man sits near a natural sandstone arch rock formation identified as Phoebe's Arch, near Palmer Lake, El Paso County, Colorado. Shows pine trees, rocks, a grassy meadow and wooded area]
A mammoth plate is a photographic negative plate size, usually 18 by 21 inches (53.5 x 45.7 cm.) with photographic prints made through contact printing.