Land Acknowledgment: Payahuunadu has been, and continues to be, the homeland of the Paiute (Nuumu), Shoshone (Newe), and Timbisha peoples. This land acknowledgment honors the original inhabitants of the Eastern Sierra and the tribes who remain here today.
Leave No Trace: Please recreate responsibly at Lamarck Lakes. Stay on the established trail to prevent erosion and damage to fragile alpine plants. Pack out all trash, including food scraps, and avoid picking wildflowers or disturbing wildlife. If you’re bringing your dog, keep them leashed and under control. Camp at least 200 feet from lakes and streams, and use a portable toilet system or bury waste in a cathole at least 6 inches deep and 200 feet from water sources. Respect the land, the people who steward it, and other hikers so the beauty of the Eastern Sierra can be enjoyed for generations to come.
Overview
The hike to Lamarck Lakes starts at Bishop’s North Lake Campground. Steep from the start, this trail rewards with turquoise alpine lakes framed by granite peaks and seasonal aspen color. You can stop at Lower Lamarck Lake for a rewarding shorter day hike or push on to Upper Lamarck Lake for even bigger views and fewer crowds.ing views and quieter shoreline.
Trail Description
| Trailhead | North Lake Campground |
| Route | Lamarck Lakes Trail |
| Mileage | 4.4 mi RT to Lower; 5.8 mi RT to Upper |
| Elevation Start | 9,350 ft |
| Elevation Gain | ~1,300 ft to Lower; ~1,560 ft to Upper |
| High Point | 10,918 ft (Upper Lake) |
| Type | Out-and-back |
| Difficulty | Strenuous |
| Water | Lamarck Creek and lakes (filter recommended) |
| Permit | Overnight |
| Pets | Yes (on leash) |
| Land Manager | Inyo National Forest |
From the parking area at North Lake, follow the short path into the campground to find the signed Lamarck Lakes Trailhead. The route wastes no time climbing—switchbacks gain several hundred feet in the first mile through lodgepole pine and aspen groves. At about 1.4 miles, a short spur leads to Grass Lake, a shallow, marshy pond worth the detour in fall when the aspen are glowing. Continuing up the main trail, the trees thin and dramatic granite cliffs rise above. At around 2.2 miles, you’ll reach Lower Lamarck Lake, a deep blue jewel set in a cirque of silver stone. For those with energy and lungs to spare, continue another 1.2 miles to Upper Lamarck Lake, perched just below the slopes of Mount Lamarck, with sweeping views and quieter shoreline.
Best Season to Hike
July through September offers the best chance for snow-free trails and warm weather. Late September to early October is prime for golden aspen, though expect colder mornings and the possibility of early snow.
Flora & Fauna
Aspen, lodgepole pine, lupine, paintbrush, and late-summer wildflowers line the trail. Marmots and pikas are common near the lakes, while Clark’s nutcrackers and mountain bluebirds patrol the skies.
Geology
The Lamarck Lakes sit in glacier-carved basins at the foot of Mount Lamarck. Exposed granite walls and talus fields tell the story of Ice Age sculpting, while moraines and erratic boulders mark the retreat of ancient glaciers.
History
Named for French naturalist Jean-Baptiste Lamarck, the lakes and peak are part of the John Muir Wilderness. While the name reflects a European scientist, the area has been part of Paiute lands and seasonal travel routes for thousands of years.
Fishing
Both Lower and Upper Lamarck Lakes are known for healthy populations of rainbow and brook trout, making them a rewarding destination for anglers willing to make the climb. Early morning and late evening are prime times for casting from shore, and small spinners, flies, or PowerBait can produce good results. A valid California fishing license is required, and anglers should follow all California Department of Fish and Wildlife regulations to help preserve fish populations for future visitors.
Know Before You Go
Afternoon thunderstorms are common in summer. Start early and be off high ground by midday. If you hear thunder or see lightning on an exposed trail, seek shelter immediately—avoid tall or conductive objects. Carry layers for high-elevation weather swings, at least two liters of water (or a filter), sun protection, and sturdy shoes for rocky tread.
Driving Directions
From Bishop, take Highway 168 (West Line Street) toward Lake Sabrina for about 18 miles. Just past Aspendell, turn right onto North Lake Road. Follow the steep, narrow paved road for about two miles to the trailhead parking area.
Parking
Day-use parking is available just below the North Lake Campground. Overflow spots are limited—arrive early during peak summer weekends.
AWE Disclaimer: Recreation activities may involve inherent risks, including but not limited to changing weather conditions, challenging terrain, wildlife encounters, and other unforeseen hazards. Visitors should check with local land management agencies or authorities for up-to-date information on trail conditions, access, permits, and regulations before planning their trip. Always prioritize safety by being prepared, carrying adequate supplies, and following Leave No Trace principles to protect the environment. Respect local rules, private property, and other visitors. This post is for informational purposes only, and participation in any activity is at your own risk.
