Overview
The Sky High Lakes basin in the Marble Mountain Wilderness is the finest backcountry destination in Klamath National Forest, a cluster of alpine lakes set beneath the ancient marble ridgeline that gives the wilderness its name. Reaching it requires a 7-mile hike with 3,200 feet of elevation gain from the Lovers Camp Trailhead, passing through old-growth forest, creek drainages, and the dramatic marble and limestone formations of the central ridge before arriving at the open alpine basin above.
The Marble Mountain Wilderness covers 245,000 acres and receives far fewer visitors than comparable wilderness areas in the Sierra Nevada or North Cascades. This relative obscurity is partly because the Klamath Mountains occupy one of the most remote corners of California, a half-day's drive from San Francisco and well over a day from Los Angeles. Visitors who make the effort find a wilderness that genuinely earns the word: the Sky High Lakes basin can be busy on summer weekends, but most of the 245,000-acre wilderness is genuinely empty.
The Lovers Camp Trailhead is the standard starting point for the Marble Mountain route. Lovers Camp Campground nearby is a small, first-come, first-served Forest Service camp that serves as the base for most backpackers. Starting from camp at first light allows reaching the lakes by midday and gives ample time to explore before the afternoon thunderstorm window. For planning overnight trips, review our national forest camping permit guide and Leave No Trace guide.
The Route
Miles 0 to 2.5 (Lovers Camp to Canyon Bottom): The trail leaves Lovers Camp and descends briefly before following Canyon Creek upstream through old-growth Douglas fir and sugar pine. The lower canyon is shaded and cool, with the creek visible alongside the trail throughout. Several log bridge crossings span the creek.
Miles 2.5 to 5.0 (Canyon to Marble Valley): The trail climbs more steeply as it leaves the main canyon and ascends toward Marble Valley. The first marble and limestone outcroppings appear on the canyon walls. The vegetation shifts from old-growth forest to open rocky terrain with scattered mountain hemlock and whitebark pine.
Miles 5.0 to 7.0 (Marble Valley to Sky High Lakes): The trail enters the high-country proper, passing the stunning white marble cliff faces that define the wilderness and climbing into the Sky High Lakes basin. The basin holds several named lakes set beneath the marble ridgeline. The largest, Sky High Lake, is suitable for swimming in late July and August when water temperatures rise slightly.
The Basin: Several established campsites ring the main lake. Camp at least 200 feet from water. Bears are active in this basin; food storage is required. Return by the same route.
When to Visit
The Lovers Camp Trailhead is accessible from late May, but the Sky High Lakes basin typically holds snow until early July. Peak season is mid-July through September. The marble formations are most dramatic in early morning light. Afternoon thunderstorms develop reliably from late June through August; plan to be below the ridge by 1 p.m.
Fire smoke from the broader Klamath Mountains region can affect air quality in July and August. Check AirNow before extended backcountry trips via the resources in our pre-trip guide.
What to Bring
Many backpackers carry 2 to 3 liters of water capacity. Water is available in Canyon Creek throughout the lower route and in the Sky High Lakes basin, but all must be treated.
Consider bringing:
- Bear canister for food storage (see bear canister requirements)
- Trekking poles for the sustained elevation gain
- Wind and rain protection for the exposed marble ridgeline
- Topographic map: the basin trail network can be confusing
- California fishing license if planning to fish
Practical Details
No wilderness permit required (as of 2026). Free campfire permit required. The trail is open to dogs and equestrians. The vault toilet is at the Lovers Camp Trailhead. Cell service is absent; download maps offline before leaving Fort Jones.
Veterans planning backcountry trips should review our veteran benefits guide for America the Beautiful pass options.
Getting There
From Fort Jones on State Route 3, turn south on Indian Creek Road and drive approximately 12 miles to the Lovers Camp Trailhead sign. The road is paved for the first portion and transitions to well-maintained gravel. High-clearance vehicles are recommended for the final miles. Fort Jones is approximately 35 miles west of Yreka via State Route 3. Cell service ends before the trailhead; download maps and check conditions before departing.