John Muir Trail: Forester Pass to Mount Whitney

This is the 21-mile, one-way John Muir Trail traverse from Forester Pass to the summit of Mount Whitney through Sequoia’s eastern high Sierra. It drops from the 13,200-foot pass into alpine basins, passes Tyndall Creek, Wallace Creek, Crabtree Meadow and Guitar Lake, then climbs Whitney’s west side to Trail Crest and the summit. It is a strenuous, multi-day backpacking segment rather than a day hike. Plan for about 20 hours of walking over two or three days; no agency time is published for this exact segment, so treat that as an estimate based on its length, steep terrain and altitude. The payoff is a continuous high-country journey from a Sierra pass to the highest point in the contiguous United States.

Forester Pass is a route endpoint, not a road-access trailhead, and there is no parking at the pass. Reach it on foot along the longer John Muir Trail approach from the north. The High Sierra Trail joins the JMT near Wallace Creek, 48.9 miles from Crescent Meadow; that is a separate, long wilderness approach, not a short connector to Forester Pass. The route ends at Whitney’s summit. If you want a road exit, continue east on the separate Mount Whitney Trail to Whitney Portal, or retrace your route. Overnight travel requires a wilderness permit for your actual entry trailhead and itinerary. Pets are not allowed on the park trail.

At Forester Pass, the JMT crosses a rocky saddle around 13,200 feet. The southbound descent follows a steep, engineered trail across the pass’s granite chute, then winds through high alpine basins and lakes. The route passes Tyndall Creek and Wallace Creek before reaching Crabtree Meadow. The route repeatedly gives back elevation before the final climb, so the 21 miles involve more work than the distance alone suggests. Wallace Creek is also the High Sierra Trail junction; don’t mistake the HST’s Crescent Meadow mileage markers for JMT mileage.

Crabtree Meadow and Guitar Lake are established camping areas on the way to Whitney. Guitar Lake is the last campsite with water before the summit approach, so fill up there and treat water collected from lakes and streams. The Forest Service’s itinerary landmarks describe general camping areas rather than guaranteed individual sites; use durable existing sites and follow the park’s wilderness food-storage rules. Guitar Lake is one of the route’s signature views: the blue water and rugged ridgeline beyond make a strong foreground-and-crest composition before the trail turns toward Whitney.

From Guitar Lake the trail traverses the back side of the mountain, then climbs switchbacks to Trail Crest, the divide between the Sierra’s west and east sides. The final open, rocky summit spur is 2.4 miles each way. At 14,505 feet, Whitney is exposed and weather can change quickly. Thunderstorms make the summit unsafe; the 1909 Mount Whitney Hut is not a storm shelter because its metal roof can conduct lightning. Hardy rosy finches live on the windswept summit; do not feed them.

The National Park Service identifies the John Muir Trail as Nüümü Poyo and describes the park’s trails as following older Indigenous routes. Mount Whitney is also known as Mount Tumangaya. These names place this modern long-distance route within a much longer human history of travel through the Sierra.

The mapped line in this guide measures 21.04 miles from Forester Pass to the summit. A Forest Service trip-planning itinerary gives approximate JMT mile markers of 187 at Forester Pass and 211 at Whitney, implying about 24 miles; the source says its mileages are approximate. The National Park Service’s High Sierra Trail itinerary measures from Crescent Meadow along a different route, so its distances are not totals for this section. Use 21 miles for the mapped segment, but check a current route map before setting out because the planning figures differ.