A specific outing is described below. Source checks are dated; weather, closures, operating hours, and reservations can change before your trip.
River Trail approach
Follow the River Trail corridor toward Thousand Island Lake through the Ansel Adams Wilderness. This is a substantial mountain trip, not a quick walk from a roadside parking lot.
- Activity
- Backcountry hiking
- Distance / format
- Long out-and-back; select and map the full route
- Effort / terrain
- Experienced mountain hikers / backpackers
- Start here
- Agnew Meadows trailheads
Good to know
The trail-system page’s segment mileage is not a complete round-trip distance, so no short total is claimed here. Wilderness permits, road or shuttle access, and a full route map need advance planning.
Details checked November 10, 2026 · Source & current notices ↗
Plan with official information
Use the official source for current closures, fees, reservations, and permitted activities. This directory is independent and does not issue permits.
Official destination information ↗