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1971 Map of Trinchera Cave

Name: 1971 Topographic Map of Trinchera Cave
Creator: U.S. Geological Survey
Published: 1973
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1973

About this map

The Purgatoire River carves a deep, winding path through this high-plains landscape in Las Animas County, serving as the central geographic feature for the surrounding canyons and waterholes. This 1971 survey highlights the remote character of the region, where life is defined by ephemeral water sources and isolated landmarks like the Million Dollar Waterhole. Notable cultural sites include the Los Hermanos Penitentes Cem, a burial ground associated with the historic Catholic lay fraternity, indicating the deep-rooted Hispanic heritage of the area.

The topography is dominated by the intersection of drainage systems such as Salt Creek, Canyon Creek, and Trinchera Creek, which flow toward the river. Notable landmarks like Trinchera Cave and Trinchera Falls offer specific points of interest for local history researchers and geologists. Scattered infrastructure like a Drill Hole and a Well reflect early industrial and ranching attempts to tap into the arid environment's resources.