2014 Map of Silica Mountain

About this map

Calapooya Divide serves as a prominent geographic spine across this part of the Cascades, marking the boundary between the Lane and Douglas county lines. The landscape is defined by its drainage systems, where the headwaters of Mosby Cr and its various forks—including W Fork Mosby Cr and E Fork Mosby Cr—carve through the high country. To the south, the terrain rises toward Snow Peak and Huckleberry Mtn, areas where Huckleberry Spring feeds into the local creek network. The map reveals the extensive network of Bureau of Land Management and National Forest roads that permeate the Umpqua National Forest, providing access to peaks like Holderman Mtn and Silica Mountain. This 2014 survey documents the complex forest management infrastructure and natural topography of the Oregon Western Cascades.