Loading map...

2011 Map of Trefry Canyon

Name: 2011 Topographic Map of Trefry Canyon
Creator: U.S. Geological Survey
Published: 2011
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2011

About this map

Colville Indian Reservation lands dominate the western bank of the Columbia River as it makes a sharp bend through this high desert landscape. The terrain is defined by a series of deep drainage features including Trefry Canyon, Henderson Canyon, and Phil Canyon, which cut through the plateaus toward the river. To the east, the settlement of Del Rio and the nearby Del Rio School anchor a rural road network that includes Trefy Rd NE and Hayden McKee Rd NE.

Water sources are vital markers in this arid region, evidenced by the numerous named springs such as Brazel Spring, Pencil Spring, and Walter Sellers Springs. The landscape is further punctuated by distinct geological formations like Castle Rock, Tombstone Rocks, and the Long Ridge south of Del Rio. Toward the southern edge, the terrain levels slightly near Tag Ear Lake and Elbow Lake, providing a contrast to the steep canyons and basalt buttes found further north.