San Gabriel Wilderness

San Gabriel Wilderness is a protected area in the southern slopes of the San Gabriel Mountains, with elevations ranging from roughly 1,600 to 8,200 feet. The terrain features mixed forests, rocky stream canyons, and steep ridges that drop into several major valleys.

President Benjamin Harrison established this as a protected reserve in 1892, following advocacy from conservationists John Muir and Abbot Kinney who recognized the need to protect forest lands. This early designation reflected a growing movement in the United States to preserve natural areas.

Indigenous peoples of the region hunted and gathered here for thousands of years, leaving their mark on how the landscape is understood locally. The mountains hold deep spiritual significance for descendants of these communities.

Several trail entrances provide access to different parts of the area, each with varying difficulty levels based on the chosen route. It is wise to start early in the day and bring plenty of water and a map, as cell service is unreliable in the mountains.

Maintenance teams use only hand tools rather than mechanical equipment to preserve natural conditions in the wilderness. This careful approach means trails develop slowly, but the landscape remains undamaged by heavy machinery.

Location: Los Angeles County

GPS coordinates: 34.24670,-117.98600

Latest update: December 11, 2025 11:05