2013 Map of Arrowrock Reservoir NE

About this map

Arrowrock Reservoir serves as the focal point for this drainage basin within the Boise National Forest during the early 21st century. The landscape is defined by a dense network of gulches and creeks, where Thorn Creek Butte and Bald Mtn overlook the steep terrain. Human activity is largely concentrated along the water, with the Cottonwood Campground and Willow Creek Campground providing access for recreation. The map traces the winding paths of Cottonwood Creek and its many tributaries, such as N Fork Cottonwood Creek and Sawmill Creek, illustrating how the watershed shapes the local geography. Named features like Switchback Gulch, Virgil Gulch, and Cherry Gulch highlight a history of local land naming conventions common to Idaho's forest lands, while Thorn Creek Road and Cottonwood Creek Road provide the primary backcountry access.