2018 Map of Mount Baldy

About this map

Mount Baldy and the high ridges of the San Gabriel Mountains dominate this 2018 survey, marking the transition from the wilderness of the Angeles National Forest to the expanding suburbs of the Inland Empire. The map details the interface between the steep canyons, such as Bear Canyon and Evey Canyon, and the foothill communities of San Antonio Heights, Rancho Cucamonga, and Upland. High-elevation landmarks like Sunset Peak and Potato Mountain stand above a network of fire roads and trails including the Sunset Ridge Fire Rd and Barrett Stoddard Truck Trl. This modern record captures the dense street grids of Claremont and La Verne where they meet the foothills, highlighting the persistent importance of water management through features like Thompson Wash and numerous named canyons that drain the rugged slopes toward the valley floor.