Lake Fork Gunnison

About the River

The Lake Fork Gunnison River flows roughly 60 miles through Hinsdale County, Colorado, rising in the San Juan Mountains above 11,500 feet and descending through high alpine terrain before pooling in Lake San Cristobal, one of Colorado's largest natural lakes. That lake was created by the ancient Slumgullion Earthflow, a massive landslide deposit that dammed the valley and continues to creep today. From the lake outlet the river flows north through Lake City and into a deep, remote canyon before slowing into the backwaters of Blue Mesa Reservoir near Gateview.

The stretch below Lake San Cristobal carries the Gold Medal designation for its exceptional wild rainbow and brown trout populations, fed by cold, consistent water from the natural lake. Below Lake City, the canyon offers continuous Class II-III whitewater through Precambrian rock gorges that see far fewer visitors than comparable runs on the Gunnison or Arkansas. CO-149 parallels much of the route, providing limited but usable shuttle access for paddlers willing to scout.

The primary gauge below Lake San Cristobal governs the upper Gold Medal stretch; the Gateview gauge tracks the full drainage for the canyon sections. Peak flows arrive in May and June from snowmelt above 13,000 feet in the La Garita and Cannibal Plateau country. Summer levels drop to wade-fishing lows by August, making the Gold Medal run the year-round anchor for anglers while paddlers target the canyon at spring runoff.