2017 Map of John Lewis Mountain

About this map

John Lewis Mountain dominates the central landscape of this Idaho interior, overlooking a complex network of canyons and drainages that feed into the eastern reaches of the Dworshak Reservoir. The topography is defined by high ridges like Lightning Points and Bear Butte, where the drainages of Boathouse Cr and Reeds Cr have carved deep incisions into the Clearwater County terrain. In this modern era, the landscape reflects a balance between timber access and aeronautical infrastructure, notably at the Big Island Airport located near the reservoir's edge. Access into this steep country is maintained via specialized forest routes including Bog Island Rd and Petri Blvd. This 2017 survey details the hydrological system of the North and South forks of Big Cr, illustrating how the watershed funnels into the expansive reservoir behind the Dworshak Dam.