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2023 Map of Oso

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

USGS Topo · Published 2023

About this map

The North Fork Stillaguamish River corridor serves as the primary artery for settlement and transport in this corner of the Cascades, winding through the southern half of the quadrangle. The small community of Oso is situated at the junction where Deer Creek meets the river, historically acting as a vital point for early pioneers as evidenced by the Oso Pioneer Cem. To the east lies Halterman, another small hub along the Arlington-Darrington Rd, which follows the river's path through the valley.

Steep terrain dominates the northern and central sections, defined by the mass of Frailey Mtn and the waters of Lake Cavanaugh. This high-altitude landscape is dotted with smaller features like Larch Lake and Russell Spring, illustrating a region where the logging and recreational industries have long shaped the local geography. The network of county roads, such as Oso Loop Rd and Lake Riley Rd, reveals how modern infrastructure navigates the deep valleys and ridges between Ebey Hill and the Skagit County line.