Abyss Lake Trail

The terrain varies significantly. The initial miles follow a mellow sandy path through a lodgepole pine forest and aspen stands. As you gain elevation, the trail becomes steeper with switchbacks, transitioning into rocky alpine terrain. Some sections may involve navigating through thick willows, and parts can even feel more like a creek bed than a trail, potentially requiring some bushwhacking, especially in the final mile to Abyss Lake.

The trail begins at the Burning Bear/Abyss Lake Trailhead. Parking is available at the trailhead, but as it's a popular route, especially during peak season, arriving early is recommended to secure a spot.

You'll experience diverse ecosystems, starting with dense pine forests and vibrant aspen groves. Further along, you'll pass Helms Lake and ascend into alpine tundra. The destination, Abyss Lake, is nestled in a dramatic glacial cirque between Mount Bierstadt and Mount Blue Sky, offering spectacular alpine views. Wildflowers and wildlife are also common sights.

Yes, dogs are generally allowed on the trail. However, as it is located within the Mount Evans Wilderness Area, dogs must be kept on a leash at all times to protect wildlife and ensure a pleasant experience for all trail users. Please also pack out all pet waste.

No specific permits are required for day use of the Abyss Lake Trail itself. There are also no entrance fees to access this part of the Mount Evans Wilderness Area. However, always check current regulations before your visit, especially if planning an overnight backpacking trip, as wilderness permits may be required for camping.

The best time to jog this trail is typically from late spring through early fall (June to September). During this period, the snow has usually melted from the higher elevations, and the weather is generally more favorable. Fall offers stunning aspen colors in the lower sections, while summer provides vibrant wildflowers. Be prepared for rapidly changing alpine weather conditions regardless of the season.

Yes, the route primarily follows the Abyss Lake Trail 602, but it also passes through sections of the Rosalie Trail.

Given its length, significant elevation gain, and alpine environment, you should pack essentials for a challenging day in the wilderness. This includes plenty of water, high-energy snacks, layers of clothing (including rain gear), sun protection (hat, sunglasses, sunscreen), a map and compass or GPS device, a first-aid kit, and sturdy trail running shoes with good grip. Trekking poles can also be beneficial for the steeper, rockier sections.

The Abyss Lake Trail is primarily an out-and-back route to Abyss Lake. There are no established loop options that return to the same trailhead without significant off-trail navigation or connecting to other, much longer wilderness routes.

Despite its difficulty, it's considered one of the finest trail runs in the area due to its seclusion, the beauty of its diverse ecosystems—from pine forests and aspen groves to alpine tundra—and the stunning reward of Abyss Lake itself. It offers a true wilderness experience with opportunities for solitude, especially compared to more crowded nearby 14er trails.

Yes, the trail is rated as difficult due to its length (16-18 miles round trip) and substantial elevation gain (over 3,000 feet), reaching an altitude of 12,650 feet. Joggers should have very good fitness and be sure-footed, as sections involve steep switchbacks, rocky terrain, and potential bushwhacking through willows. High altitude experience is beneficial, and always be prepared for rapid weather changes.