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2019 Map of Hamm Canyon

Name: 2019 Topographic Map of Hamm Canyon
Creator: U.S. Geological Survey
Published: 2019
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2019

About this map

Dolores River currents carve through the southwestern corner of this Colorado landscape, defining the deep relief of Dolores Canyon and Blue Canyon. The region is dominated by a series of significant drainage basins and valleys, including the broad Big Gypsum Valley and the aptly named Disappointment Valley. This topography is marked by distinct seasonal watercourses such as Nicholas Wash, Dugout Wash, and Disappointment Cr, which highlight the arid hydrological patterns of San Miguel County.

A network of county roads, including Co RD 20r and Co RD 14r, provides access to these canyon lands, tracing the edges of notable formations like Cape Horn and Hamm Canyon. The map reveals a transition between the elevated mesas and the complex wash systems, where features like Joe Davis Canyon feed into larger tributaries. This document captures the modern state of these public lands, showing the intersection of physical geography and the rural road system used for land management and exploration.