Mysterious Lake lives up to its name. Tucked away in the vast backcountry of the Gunnison National Forest, this remote alpine water body sits in a rugged drainage that ultimately feeds the San Juan and Colorado River systems, sending its water on a long journey toward the Pacific Ocean. Finding it requires genuine route-finding ability and a willingness to venture well off maintained trails.
The lake occupies a high-elevation basin surrounded by dense spruce-fir forest and rocky terrain typical of the Gunnison County backcountry. Visitor traffic is minimal, which means solitude is almost guaranteed but also means there are no established facilities, marked trails, or reliable cell service in the area. This is a destination for experienced backcountry travelers comfortable navigating with a map and compass or GPS.
Water conditions at Mysterious Lake are largely unknown to the broader public. The remote setting and high elevation suggest cold, clear water fed by snowmelt and spring runoff, but published information about fish populations, depth, or water quality is scarce. Anglers willing to make the trek may find untouched native trout habitat, or they may find a barren alpine tarn — part of the mystery.
Access typically involves a long approach through national forest roads that may require high-clearance vehicles, followed by a cross-country hike through untracked terrain. Snow closes most approach routes from October through June, and summer weather at elevation is unpredictable with rapid afternoon thunderstorm development.
Mysterious Lake rewards those who value exploration over convenience. If your idea of a perfect day involves bushwhacking through wild Colorado backcountry to discover a lake that most people will never see, this is your kind of destination. Come prepared for full self-sufficiency and leave no trace.