1988 Map of Boulder Butte

About this map

The Greenhorn Mountains form the backdrop of this late 1980s resource-rich landscape where mining and timber management converge. Spanning the boundary between Umatilla National Forest and Malheur National Forest, the region is defined by deep drainages like Big Boulder Creek and the John Day River. For the industrial historian, the map documents a legacy of extraction, from the China Diggings Mine and Stalter Mine to several tunnels and a quarry. Water management is central to the area's history, marked by numerous developed springs such as Piute Spring and Crockett Spring. The Sunshine Guard Station serves as a lone administrative hub amidst the ridges, overseeing a network of trails and primitive roads like Riverside Gulch that supported the area's rugged economic activity.