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2013 Map of Henley Basin

Name: 2013 Topographic Map of Henley Basin
Creator: U.S. Geological Survey
Published: 2013
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2013

About this map

Brownlee Reservoir dominates the drainage patterns of this borderland, where the Snake River separates Baker County, Oregon, from Washington County, Idaho. The steep canyon walls are etched by numerous seasonal and perennial watercourses, including the curiously named Deafy Cr and Bay Horse Cr. The topography reveals a dramatic elevation shift from the reservoir floor up to the surrounding ridges, punctuated by sharp landforms like Billy Gulch and Ryan Gulch.

South of the main reservoir body, the terrain levels slightly into the eponymous Henley Basin, a distinct geographical feature fed by Henley Cr. This area is characterized by a network of drainage systems such as Perkins Cr and Grouse Cr that carve through the high country. The map captures the complex administrative boundary between Oregon and Idaho as it follows the historical path of the river, providing a precise look at the land division and natural water features of this transition zone.