Philmont Scout Ranch is a large, rugged, mountainous ranch located near the town of Cimarron, New Mexico, covering 140,177 acres (219.027 sq mi) of wilderness in the Sangre de Cristo Mountains of the Rocky Mountains of northern New Mexico. The ranch, formerly the property of oil baron Waite Phillips and now that of the Boy Scouts of America, is a National High Adventure Base in which crews of Scouts and Venturers take part in backpacking expeditions and other outdoor activities. It is the one of the largest youth camps in the world in land area. Between June 8 and August 22 around 23,000 Scouts and adult leaders backpack across the Ranch's extensive backcountry while over 1,130 seasonal staff personnel maintain the Ranch's summer operations.

Philmont is also home to the Philmont Training Center and the Seton Museum. The Training Center is the primary location for BSA's national volunteer training programs. Philmont is also operated as a ranch, maintaining small herds of cattle, horses, burros and bison.