2020 Map of Ryan Peak

About this map

Ryan Peak and Glassford Peak dominate this high-elevation terrain where the headwaters of three major Idaho river systems originate. The geography is defined by a significant triple-divide, sending water north via the E Fork Salmon River, south through the N Fork Big Wood River, and east into the N Fork Big Lost River. This 2020 survey details the complex drainage patterns of the Boulder Mountains, where steep-walled corridors like Crooked Canyon and Lost Mine Canyon cut through the granite.