2011 Map of Pearrygin Peak

About this map

Pearrygin Peak stands as the central landmark in this high-altitude landscape of the eastern Cascades, where a complex network of drainages defines the terrain. The hydrological pattern is anchored by Boulder Creek and its many branches, including the North Fork Boulder Creek, Middle Fork Boulder Creek, and South Fork Boulder Creek. These watercourses create a distinct radial drainage pattern from the surrounding summits, such as Tripod Peak and Ramsey Peak. Access to this remote area is documented through the Forest Service road system, specifically Nat For Dev Rd 37 and Nat For Dev Rd 100, which navigate the steep gradients. The map captures a moment of modern land management where topographic precision reveals the intricate relationship between high ridges like First Butte and the creeks like Bear Creek and Blue Buck Creek that carve the valleys below.