[No. 1021. Rio de los Pinos, (Rio San Antonio) and rock formations in the Toltec Gorge, Rio Arriba County, New Mexico. Shows a Denver and Rio Grande Railroad train near the Toltec tunnel high on the rock cliff]
2016827
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Beinecke Rare Book and Manuscript Library > [No. 1021. Rio de los Pinos, (Rio San Antonio) and rock formations in the Toltec Gorge, Rio Arriba County, New Mexico. Shows a Denver and Rio Grande Railroad train near the Toltec tunnel high on the rock cliff]
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.