Four Lakes and Siligo Peak Loop

This loop is renowned for its stunning alpine scenery. You'll encounter four beautiful lakes: Deer Lake, Summit Lake, Diamond Lake, and Luella Lake. The trail also encircles Siligo Peak, offering panoramic views of the Trinity Alps, distant snow-covered peaks, and even Mount Shasta and Lassen Peak on clear days. Expect tumbling creeks, lush meadows, massive cliffs, and brightly colored rocks.

The ideal time to hike is typically from late June or early July through September, once the snow has melted sufficiently. Due to its higher elevation, the access window can be shorter, with snow persisting into early summer. Wildflowers are abundant in mid-summer, and fall offers vibrant colors.

No, this trail is generally considered hard or strenuous. The full route, including access trails, involves significant distance and elevation gain, with continuous ascents and descents. It's best suited for experienced hikers with good physical conditioning.

A popular access point is via the Long Canyon Trail, which leads to Deer Creek Pass where the loop begins. This approach involves a substantial climb. Due to the length and difficulty, many hikers opt for a backpacking trip rather than a day hike, establishing base camps at one of the lakes.

Yes, dogs are generally allowed in the Trinity Alps Wilderness, but they must be kept on a leash to protect wildlife and ensure a pleasant experience for all visitors. Always practice Leave No Trace principles, including packing out all pet waste.

While there are no entrance fees for the Trinity Alps Wilderness itself, backpacking permits are self-issued and required for overnight trips. Additionally, a California Fire permit is needed if you plan to use a stove or have a campfire. Check with the local ranger station for the most current regulations.

The terrain is diverse and challenging. You'll traverse through pine forests, open to vast meadows, and navigate rocky talus slopes. The elevation profile is often described as a "rollercoaster," with numerous switchbacks and sustained climbs. Some sections, particularly around Siligo Peak and above Deer Lake, have "no fall" zones that may require microspikes and an ice axe in heavy snow years.

Yes, the route incorporates sections of several trails. You'll spend a significant portion on the Long Canyon Trail and the Four Lakes Loop Trail (9W13). It also briefly touches the Deer Creek Trail (9W17) and the Summit Lake Trail (09W13A), and includes a segment of the Siligo Peak trail for the summit ascent.

Consider making the short, approximately 0.5-mile side trip to summit Siligo Peak. It adds about 300-400 feet of elevation gain but offers some of the most spectacular panoramic views in California, extending far beyond the immediate loop. It's a highly recommended addition to your itinerary.

While the core loop around Siligo Peak is about 5.2 to 6 miles, the shortest access routes add at least 6 miles, making the total trip significantly longer. Given the challenging terrain and substantial elevation gain, it's most commonly done as a 2-3 day backpacking trip, allowing ample time to enjoy the scenery and potentially summit Siligo Peak.

The Trinity Alps Wilderness is home to diverse flora and fauna. You might spot deer, various bird species, and smaller mammals. In season, the meadows and slopes burst with wildflowers. The landscape features pine forests, lush meadows, and unique rock formations, offering a rich natural experience.