2023 Map of Olive Lake

About this map

Olive Lake and its accompanying Upper Reservoir sit at the heart of this high-elevation landscape in the Greenhorn Mountains. The area is a nexus of remote water sources and backcountry trails, where Chrome Spring and Snowshoe Spring provide critical hydrology within the protected North Fork John Day Wilderness. The drainage patterns are defined by the North Fork John Day River to the north and the complex network of Lake Creek and Lost Creek to the south. Historically significant routes such as the Ben Harrison Trl and Saddle Camp Trl suggest a long-standing reliance on trail networks for navigating the difficult terrain around Rabbit Butte and Sheep Rock. This modern survey illustrates the intersection of industrial water management and wilderness preservation in the Umatilla National Forest.