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2010 Map of Big Triangle

Name: 2010 Topographic Map of Big Triangle
Creator: U.S. Geological Survey
Published: 2010
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2010

About this map

The Colorado River carves a deep path through the high desert of eastern Utah, creating the dramatic relief of Westwater Canyon and Marble Canyon. This 2010 survey illustrates a sparsely populated landscape where ranching and river access define the human footprint. Isolated holdings like Hallet Ranch, Knowles Ranch, and Gavin Ranch are scattered across the terrain, often positioned near water sources such as Cane Spring or the river banks at Cisco Landing.

South of the river, the vast expanse of Sand Flat gives way to the distinctive formations of the Big Triangle and Little Triangle. The map captures a complex network of seasonal drainages including Coates Creek, Agate Wash, and Dry Gulch, which cut through the mesa country. This topography dictates the movement through the region, with trails and unpaved roads navigating between prominent landmarks like Big Hole and the narrow corridors of Triangle Canyon.