1969 Map of Arrowrock Reservoir NE

About this map

Boise National Forest dominates this mountain landscape, defined by the deep canyons and high ridges of the Boise River drainage. The 1969 field-checked survey shows the Arrowrock Reservoir at its normal pool elevation of 3216 feet, with markers indicating Mile 84, Mile 85, and Mile 87 along the Boise River channel. Notable for its recreation and forestry infrastructure, the map identifies the Cottonwood Ranger Sta and the Willow Creek Campground. High-elevation landmarks like Thorn Creek Butte and Mt Heinen tower over a network of drainages including Cottonwood Creek and the North Fork Thorn Creek. Foot travel is represented by the Bald Mtn Trail, while modern utility is noted at the Radio Facility near the reservoir's southern edge.