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2023 Map of Monumental Rock

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

USGS Topo · Published 2023

About this map

The Snake River carves a deep, winding path through the borderlands of Franklin and Walla Walla counties, defining a landscape of dramatic elevation changes and remote river-bottom features. This recent 2023 survey illustrates the sparse human footprint in this section of Washington, centered around the eponymous Monumental Rock landmark and the small settlement areas of Magallon and Ruxby. The map reveals the intricate network of canyons draining toward the river, including Skookum Canyon and Cow Bar Canyon, which showcase the complex drainage patterns of the high plateaus.

Transportation is limited to narrow rural corridors such as Magallon Rd and Casey Rd, which provide access to river features like Three Springs Bar. The contrast between the flat river bars and the steeply rising canyon walls at Walker Canyon highlights the geographical challenges of this terrain, where agricultural and ranching interests rely on these few vital road links and natural river access points.