Lone Pine Lake

Lone Pine Lake is a pristine alpine reward at the end of a relentless climb in Rocky Mountain National Park's west side, located in Grand County, Colorado. Perched high above Grand Lake with commanding views of the valley below, this backcountry destination draws hikers who want a challenging day on the trail and a payoff that delivers. The roughly 5.5-mile hike gains significant elevation through dense forest, along rushing creeks, and past waterfalls before arriving at a quiet mountain lake where the crowds thin and the scenery stretches wide.

The trail to Lone Pine Lake begins near the East Inlet Trailhead on the west side of Rocky Mountain National Park, following the East Inlet corridor through lush subalpine forest. The first portion of the hike runs alongside the creek with relatively gentle grades, passing wildflower meadows that peak in late June and July. The real work begins as the trail pitches upward through a sustained climb that tests legs and lungs at altitude. Cliffside sections along the way open up sweeping views of Grand Lake far below, a visual reward that helps break up the ascent.

Waterfalls line portions of the route, fed by snowmelt through midsummer, and the sound of rushing water accompanies hikers for much of the climb. Wildlife is active along the East Inlet trail, particularly in early morning hours. Visitors report seeing a range of mountain species along the forested corridor, and the diverse habitat from creekside to alpine supports birdlife throughout the season.

Fishing at Lone Pine Lake is possible, though the lake holds smaller fish. Anglers who make the effort to carry gear up the trail will find a lightly pressured water with a backcountry setting. A valid Colorado fishing license is required, along with adherence to park-specific fishing regulations.

The trail continues beyond Lone Pine Lake to an overlook above the basin and then onward to Lake Verna, making it possible to extend the day for those with the fitness and time. The overlook between Lone Pine and Verna offers one of the most stunning vantage points on the west side of the park.

Seasonal planning is essential. The trail is best hiked from late June through September when snow has cleared and wildflowers are blooming. Afternoon thunderstorms are a serious consideration at this elevation, and an early start is non-negotiable during summer months. Hikers consistently recommend beginning by 8 AM to allow time at the lake and a safe descent before weather moves in. The round trip typically takes five to six hours, and the descent, while faster, demands attention on steep and sometimes rocky sections. Mosquito pressure is notably low compared to other high-country lakes in the area, a welcome surprise for summer visitors.