Florence Lake to North Lake Loop

This 58.8-mile loop is a rugged and remote adventure linking Florence Lake to North Lake via the Pacific Crest Trail (PCT), Piute Pass, and Lamarck Col. Ideal for experienced backpackers looking for solitude, sweeping alpine views, and high-altitude challenge, the route includes off-trail travel over Lamarck Col and visits some of the most stunning terrain in the Sierra—Darwin Bench, Evolution Basin, and the upper reaches of Piute Canyon. Most hikers tackle this loop over 5–7 days, with an option to drop down into Bishop for a food resupply before heading back up over Lamarck Col to close the loop.

The route begins on the Florence Lake Trail, heading east through forested terrain before linking up with the PCT. Take the PCT south to the Piute Canyon Trail.

At the Piute Canyon junction, head east and begin a gradual climb toward Piute Pass. After topping out at Piute Pass, you’ll reach the North Lake Trailhead. This is a common bailout or resupply point, with nearby access to Bishop (though it requires a hitch).

To complete the loop, head up the Lamarck Lakes Trail and prepare for the toughest section of the trip: the cross-country ascent over Lamarck Col. The route is unmaintained but well-traveled, leading through rocky terrain and snowfields to the top of the col. From the top, take in sweeping views of Darwin Canyon before dropping down into the Darwin Bench—an otherworldly high-altitude basin that feels tucked away from time. Rejoin the PCT and head north, retracing part of your route back toward the Florence Lake Trail to complete the loop.

You’ll move through several ecological zones—Jeffrey pine and red fir forests in lower elevations, followed by lodgepole pine, expansive meadows dotted with wildflowers, and rocky alpine zones above 11,000 feet. Keep an eye out for marmots, pikas, mule deer, and maybe even bighorn sheep or a black bear. Birdwatchers may spot Clark’s nutcrackers, mountain bluebirds, and American dippers in creekside areas.

PERMITS AND LOGISTICS

• A wilderness permit is required and can be reserved through www.recreation.gov . 

• If starting at Florence Lake, you may need a boat ride across the lake depending on water levels and time of year—check with the Florence Lake store ahead of time.

• Crampons or microspikes and an ice axe may be necessary for Lamarck Col depending on conditions, particularly early season. The Lamarck Col section is off-trail and involves snow, talus, and steep sections—be sure you’re confident in your navigation and movement over rugged terrain.

• Weather conditions can change rapidly in the Sierra. Be prepared for varying temperatures and possible thunderstorms.