Bishop Pass to North Lake (full loop)

This 47.5-mile loop route through the Eastern Sierra connects some of the region’s most dramatic alpine basins and passes. Starting at the South Lake Trailhead, the route travels over Bishop Pass and into the high country, linking up with the Pacific Crest Trail (PCT) before exploring the stark beauty of Darwin Canyon and crossing Lamarck Col. From there, it dips down to North Lake before climbing into the Sabrina Basin, looping past sparkling alpine lakes and ending back at South Lake. With rugged off-trail sections, glacial lakes, and endless views, this adventure offers a challenging but rewarding journey through some of the best terrain in the Sierra Nevada.

Beginning at South Lake, the route climbs steadily along the well-maintained Bishop Pass Trail through pine forest and past a string of alpine lakes. Above the treeline, you’ll reach Bishop Pass with sweeping views of the Inconsolable Range before descending into Dusy Basin and eventually joining the PCT.

Heading north on the PCT, you’ll wind through Le Conte Canyon along the Middle Fork Kings River, then turn off into Darwin Canyon via an unmaintained trail and some cross-country travel. Darwin’s stark granite terrain, dotted with icy tarns, feels otherworldly. The climb to Lamarck Col is steep and rocky, with no formal trail and giant boulder fields that will test your patience—micro-navigation and snow travel skills may be necessary, especially in the early season.

From the col, descend into the more lush Lamarck Lakes basin, eventually joining the Lamarck Lakes Trail and continuing down to the North Lake area. A short road walk links you to the Sabrina Basin Trail, where the trail climbs again into more alpine wonder. The route drops steeply through meadows and mixed conifer forest to the South Lake Road. One final segment along the Rainbow Pack Station Trail brings you back to South Lake, completing the loop.

FLORA AND FAUNA
This route travels through several ecological zones—from sagebrush scrub and Jeffrey pine forests to high-alpine meadows and barren granite passes. In summer, wildflowers light up the meadows, and crystal-clear lakes reflect dramatic peaks. Wildlife might include marmots, pikas, mule deer, and black bears. At higher elevations, look for golden trout in alpine lakes and soaring raptors above.

SAFETY, LOGISTICS, OTHER CONSIDERATIONS

• Wilderness permits are required year round for overnight trips and can be reserved via www.recreation.gov. Day use does not require a permit. No campfires above 10,000 ft.

• This route includes cross-country sections—especially over Lamarck Col—and is best suited for experienced backpackers comfortable with off-trail navigation and exposure.

• Bear canisters are required. All scented items must be stored in bear proof containers.

• Lingering snow may cover passes well into July. 

• Water from creeks, lakes and springs should be treated before drinking.

• The route can be done in either direction, and if you arrange a shuttle in advance you can decrease the mileage by making it point to point.

PARKING
Parking is available at the Bishop Pass Trailhead near South Lake. Arrive early to secure a spot, especially during peak hiking season. Vault toilet is available at the trailhead.

ADDITIONAL INFORMATION
For more information on permits, camping, and trail conditions, visit the Inyo National Forest website.