Haynach Lakes via Green Mountain and Tonahutu Creek Trail

Komoot rates this trail as moderate, but it is generally considered difficult due to its length (approximately 8.6 miles / 13.85 km out-and-back), significant elevation gain of about 2,428 feet (740 m), and varied terrain. Hikers should be prepared for a steep initial climb, potentially faint paths in open areas, and the possibility of snow and ice well into summer.

The Komoot estimated duration for this route is around 4 hours and 14 minutes. However, for the full out-and-back journey to Haynach Lakes, seasoned hikers often report completion times of just under 8 hours, depending on pace and stops.

The trail begins at the Green Mountain Trailhead. Parking is available at the trailhead, but as this is a popular area within Rocky Mountain National Park, it's advisable to arrive early, especially during peak season, to secure a spot. Check the Rocky Mountain National Park website for current parking regulations and potential timed entry requirements.

Yes, this trail is located within Rocky Mountain National Park, so a park entrance fee is required. Additionally, if you plan on backcountry camping along the route, such as at the Haynach Lakes campsite, you will need a specific backcountry permit, which often requires reservations well in advance. For the most current information on fees and permits, please visit the official nps.gov website.

No, dogs are not permitted on the Haynach Lakes via Green Mountain and Tonahutu Creek Trail. Rocky Mountain National Park regulations generally prohibit dogs on trails to protect wildlife and natural resources.

The best time to hike this trail is typically from late June through September. During these months, snow and ice have usually melted enough to make the trail more accessible, though patches can persist. Be prepared for rapidly changing weather conditions, including afternoon thunderstorms, and always check the forecast before heading out.

This trail offers breathtaking alpine beauty. You'll traverse beautiful meadows, pass by the picturesque Granite Falls where Tonahutu Creek cascades over granite slabs, and enjoy sweeping mountain views as you approach the treeline. The journey culminates at the pristine Haynach Lakes, nestled at over 11,000 feet below Nakai Peak.

The trail winds through areas frequented by elk and moose, especially in the lush subalpine meadows, offering excellent opportunities for wildlife observation. At the lakes, you might spot pikas among the rocks and various species of trout in the water. Birdwatching is also rewarding, with species like Mountain Bluebirds and Western Kingbirds present.

Yes, this route utilizes sections of several official trails. You will hike along the Green Mountain Trail, the Tonahutu Creek Trail, and a significant portion of the Continental Divide National Scenic Trail - Rocky Mtn Park, which is also part of the CDT - Colorado Section.

Yes, this trail is popular for both backcountry camping and fishing. Multiple backcountry campsites are available along the route, including one directly at Haynach Lakes, but reservations are required and often sell out quickly. Haynach Lake is also a popular spot for anglers, home to several species of trout, though specific regulations apply regarding catch and release or keeping fish.

Given the trail's difficulty, elevation, and rapidly changing mountain weather, essential items include plenty of water, high-energy snacks, layers of clothing (including rain gear), sun protection, a map and compass or GPS, and a first-aid kit. Depending on the season, microspikes or crampons might be necessary for lingering snow and ice. Always be prepared for afternoon thunderstorms and plan to descend below treeline before early afternoon.