Big Hamilton Lake

Overview

Big Hamilton Lake is the showpiece of the Hamilton Lakes basin: a blue alpine bowl tucked beneath thousand-foot granite walls with knockout views of the Great Western Divide. It’s a backcountry reward that feels earned—remote, dramatic, and unforgettable once you crest the last switchbacks.

Getting There

Most hikers reach it via the High Sierra Trail from Crescent Meadow. Expect roughly 30–33 miles round trip, and plan 2–3 days unless you’re very fit. The approach rolls through forests and meadows, then traverses airy granite benches with huge vistas toward the Middle Fork Kaweah. Notable granite landmarks like Angel Wings and Valhalla loom above the trail as you near the basin.

What You’ll See & Do

At the lake, broad granite slabs meet clear water—perfect for cooling off after a long haul. Trout often cruise the shoreline, and sunrise/sunset light can be superb on the surrounding walls. If you continue east, the route climbs toward Precipice Lake and Kaweah Gap, crossing the historic Hamilton Gorge ledge and tunnel blasted after a 1937 avalanche took out the original bridge.

Camping & Amenities

Primitive lakeside camping is the norm here, with flat granite shelves and big views. There’s a pit toilet near the lake, but don’t rely on it being pleasant—bring your own supplies and practice strict Leave No Trace. Bear boxes are available at popular camps along the approach (like Nine Mile Creek, Buck Creek, and Bearpaw Meadow), but not at every site in the basin, so plan food storage accordingly.

Conditions, Wildlife & Hazards

This is a strenuous trip with rocky tread and some exposure. Summer afternoons can be blazing on the sun-baked granite between Bearpaw and Hamilton. Mosquito waves are common. Wildlife is active: you might see deer around camp, trout in the lake, and mischievous marmots that love anything salty—keep poles, straps, and socks secured.

Permits

A wilderness permit is required for overnights. For this corridor, you need a High Sierra Trail permit; permits for other trails don’t authorize travel on the HST segment between Seven Mile Hill and Kaweah Gap. Reserve early for peak season.

Best Time to Visit

Late June through September is typical, depending on snowpack. July often brings wildflowers in the meadows on the way in. Start hiking early to beat afternoon heat and potential thunderstorms, and expect more company on weekends and mid-summer. Photographers will love golden hour when the cirque glows.

Tips for a Better Trip

• Break the approach at Nine Mile, Buck Creek, or Bearpaw to make the climb to the lake more enjoyable.
• Filter at Lone Pine Creek and top off before exposed sections where water can be sparse for a stretch.
• If continuing beyond the lake, be ready for lingering snow/ice near Precipice Lake into mid-summer.