Outer Mountain Loop
Difficulty: Strenuous; significant elevation changes and primitive trail
Most hikers begin from the Chisos Basin and hike the trail in a clockwise direction. Bear-proof storage boxes are available for caching water at two locations only: The Blue Creek/Homer Wilson Ranch on the Ross Maxwell Scenic Drive and the Juniper Canyon Trailhead (high-clearance vehicle required). Caching water or other items for use on the Outer Mountain Loop in the storage boxes at Toll Mountain Pass (upper end of the Pinnacles Trail) or any other NPS-provided storage box is prohibited.
Caching WaterCarrying adequate water is always a concern on this trail. Do not rely on seasonal or intermittent springs. We recommend that you carry a minimum of one gallon of water per person per day. Water can be cached in the storage boxes located at the Homer Wilson/Blue Creek Ranch and at the end of the Juniper Canyon road (Juniper Canyon requires a high clearance vehicle). Caching water in any other NPS-provided storage box is prohibited.
When caching water, remember to mark each bottle with your name and the date you plan to pick up the water. Please pack out empty bottles. Only water can be stored in the storage boxes. Food and equipment left in the boxes are subject to removal.
Last updated: December 17, 2018