Caribou Lakes Loop

The Caribou Lakes Loop is considered a demanding and strenuous hike, not suitable for beginners. It involves significant elevation gain, often ranging from 4,251 to 4,810 feet (1,296 to 1,466 meters), over a total length of 16 to 19 miles (25.7 to 30.6 km). Hikers should be prepared for sustained uphill climbs, particularly on the 'Old Caribou Trail' if chosen as part of the loop, and a good level of fitness is essential.

The terrain is diverse and often rugged. You'll navigate through mixed conifer forests, alpine tundra, and areas characterized by stark white granite, including impressive spires and sawtooth summits. Expect many tightly wound switchbacks, relentlessly steep sections, and rocky paths. In heavy snow years, some areas may retain snow until mid-July.

The loop offers spectacular alpine scenery. Key highlights include the massive Caribou Lakes Basin, home to Caribou Lake—the largest lake in the Trinity Alps. You'll also encounter Snowslide Lake, Lower Caribou Lake, and Middle Caribou Lake, along with numerous smaller tarns. The basin itself is a grand bowl of white granite, with a dramatic shift to red peridotite and gneiss on its south side. From various vantage points, such as Caribou Mountain or Sawtooth Ridge, you'll get stupendous panoramas of the rugged Trinity Alps, including peaks like Sawtooth Peak and Thompson Peak, and distant views of Mount Shasta and Mount Lassen. You'll also pass through Indian Meadow and by Long Lake.

Yes, the Caribou Lakes Loop is located within the Trinity Alps Wilderness, which is part of the Shasta-Trinity National Forest. Wilderness permits are required for both day hikes and overnight trips. These permits are typically free and can be obtained at trailheads or ranger stations. There is generally no entrance fee for the wilderness area itself, but always check with the local Forest Service office for the most current regulations.

Yes, dogs are generally allowed on trails within the Trinity Alps Wilderness, including the Caribou Lakes Loop. However, they must be kept on a leash at all times to protect wildlife and ensure a pleasant experience for all hikers. Please remember to pack out all pet waste.

The best time to hike the Caribou Lakes Loop is typically from late July through September. Earlier in the season, you may encounter significant snowpack, especially in higher elevations, which can make navigation difficult and dangerous. By late summer, most of the snow has melted, and the weather is generally more stable, offering ideal hiking conditions and vibrant wildflowers in pockets.

The primary access point for the Caribou Lakes Loop is typically from the Caribou Lakes Trailhead, often reached via the Trinity Alps Resort Road. Parking is usually available at the trailhead, but it can fill up quickly during peak season. An early start is recommended to secure a spot, especially if you plan a day hike.

Water sources are generally available along the trail, particularly from the numerous lakes and streams in the Caribou Lakes Basin. However, it is highly recommended to filter or treat all water collected from natural sources to prevent waterborne illnesses. Always carry enough water for sections where sources might be scarce or unreliable.

For a varied experience and to manage the strenuous ascent, consider making a figure-eight loop by utilizing both the 'Old Caribou Trail' and the 'New Caribou Trail'. The Old Caribou Trail is significantly steeper, while the New Caribou Trail offers a more gradual, though still challenging, climb. Planning your route to ascend the steeper Old Trail and descend the New Trail, or vice-versa, can offer different perspectives and manage the physical demands.

While it is possible for highly fit and experienced hikers to complete the Caribou Lakes Loop as a very long and strenuous day hike, it is widely recognized as one of the classic backpacking trips in the Trinity Alps. Many hikers prefer to complete it as an overnight or multi-day trip, allowing more time to explore the stunning Caribou Lakes Basin and enjoy the epic views without rushing.

The Trinity Alps Wilderness is home to diverse wildlife. While hiking the Caribou Lakes Loop, you might spot various bird species, deer, and smaller mammals like marmots or pikas in the alpine areas. Black bears are also present in the wilderness, so it's important to practice bear-safe food storage and carry bear spray. Always observe wildlife from a respectful distance.