Nestled in the San Juan Mountains of southwestern Colorado, Blue Lake is a pristine alpine lake that has become a favorite destination for hikers, backpackers, and nature lovers. With its crystal-clear blue waters and breathtaking mountain views, Blue Lake offers a peaceful retreat from the hustle and bustle of modern life.

In this article, we’ll explore the history, geography, and ecology of Blue Lake, as well as the many outdoor activities that visitors can enjoy in this beautiful part of the Rockies.

History of Blue Lake

Blue Lake has been an important site for Native American communities for thousands of years. The Ute tribe, who inhabited the San Juan Mountains for centuries, used the area around Blue Lake for hunting, fishing, and gathering medicinal plants.

In the late 1800s, European settlers began to explore the region, attracted by the abundance of natural resources and the scenic beauty of the area. Many early visitors to Blue Lake were miners, who were searching for gold and silver in the mountains.

In the early 20th century, conservationists began to recognize the importance of protecting natural areas like Blue Lake from commercial development. In 1924, the U.S. Forest Service established the Weminuche Wilderness, which encompassed much of the San Juan Mountains, including Blue Lake.

Geography and Ecology of Blue Lake

Blue Lake sits at an elevation of over 11,000 feet above sea level, surrounded by rugged peaks and pristine wilderness. The lake itself is small, measuring less than half a mile in length, but its deep blue color and serene beauty make it a must-see destination for anyone exploring the San Juan Mountains.

The surrounding landscape is dominated by alpine tundra and subalpine forests, with a variety of plant and animal species adapted to the harsh mountain environment. Visitors to Blue Lake can expect to see wildflowers, mountain goats, marmots, and a variety of bird species, including golden eagles and peregrine falcons.

Activities at Blue Lake

Hiking and backpacking are the most popular activities at Blue Lake, and there are several trails that lead to the lake and surrounding wilderness areas. The most popular trail is the Blue Lakes Trail, which begins at the end of Box Canyon Road outside of Ouray, Colorado. The trail is approximately six miles long and climbs over 2,000 feet in elevation, offering spectacular views of the San Juan Mountains and the surrounding wilderness.

For more experienced hikers and backpackers, the nearby Ice Lake Basin is a must-see destination. The Ice Lake Basin Trail is a strenuous nine-mile hike that climbs over 3,000 feet in elevation, but the stunning views of Ice Lake and the surrounding mountains make it well worth the effort.

Fishing is also a popular activity at Blue Lake, and the lake is home to several species of trout, including rainbow, brook, and cutthroat. Visitors must have a valid Colorado fishing license to fish in Blue Lake.

Camping is allowed in the Weminuche Wilderness, but visitors should be prepared for primitive camping conditions, as there are no designated campsites or facilities in the wilderness. Visitors must pack in and pack out all trash and waste, and campfires are not allowed in the wilderness to minimize the impact on the fragile alpine ecosystem.


Blue Lake, Colorado is a natural wonder that offers visitors the chance to experience the beauty and serenity of the San Juan Mountains. Whether you’re a hiker, backpacker, fisherman, or simply a nature lover, Blue Lake is a must-see destination that will leave you awed and inspired by the majesty of the natural world.