The last confirmed grizzly bear sighting in Colorado was in the South San Juan Wilderness in 1979. Reports are that grizzlies might remain in the area, just no confirmed sightings. The bear history and the incredible Conejos Falls is the draw for this extremely remote trip.
The loop trail is 50+ miles southwest of Alamosa, CO and takes you to the headwaters of the Conejos River. Totaling a short 14 miles, the real difficulty is the altitude in that you’ll cross Continental Divide (via the Continental Divide Trail.
Trailhead is along FR 247 past Platoro Reservoir in the South San Juan Wilderness. Trailhead elevation is approximately 10,200′ with a highest altitude around 12,200′. Total loop distance is approximately 14.0 miles in 3 days of hiking (4/6/4).