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2023 Map of Tanner Lake

Name: 2023 Topographic Map of Tanner Lake
Creator: U.S. Geological Survey
Published: 2023
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2023

About this map

The Bisti/De-na-zin Wilderness occupies the northern reaches of this high-desert landscape in San Juan County, where the terrain is defined by a network of drainage systems like De-na-zin Wash and Alamo Wash. These ephemeral watercourses flow toward the Chaco River in the southwest, carving through the sandstone and shale formations typical of the San Juan Basin. The map details a sparsely settled region focused around the small community of Tsaya and the proximity of Delnazini.

Infrastructure is characterized by a grid of rural and service roads, including Indian Svc Rte 7000 and various county routes that navigate the complex topography. Landmarks such as Tanner Lake, Dog Eye Pond, and Split Lip Flats provide specific points of reference within the badlands. Further south, the dramatic relief of Tsaya Canyon highlights the erosion-carved geology of the Four Corners region.