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1985 Map of Blanco

Name: 1985 Topographic Map of Blanco
Creator: U.S. Geological Survey
Published: 1985
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1985

About this map

Blanco sits at the heart of this mid-1980s landscape, positioned where the valley floor meets an intricate system of high mesas and deep-cut canyons. The San Juan River serves as the lifeblood of the region, its waters diverted through an extensive network of human-engineered waterways including Citizens Ditch and Hammond Ditch. These irrigation efforts are further expanded by the presence of the Navajo Indian Irrigation Project and the substantial Main Canal, illustrating the vital role of water management in this arid New Mexico terrain.

The topography is dominated by dramatic elevation changes, notably the broad Manzanares Mesa and Harris Mesa. Between these heights, the land is fractured by numerous drainages such as Cañon Largo, Armenta Canyon, and Muñoz Canyon. Outside the central settlement, the map records the technical infrastructure of the area, including the Basing Station and various 4WD tracks that navigate the high plateaus.