Phelps Lake Loop
What to Expect
Safety Advisory
This is prime grizzly and black bear country. The Rockefeller Preserve requires bear spray and recommends groups of three or more. Make noise on blind corners, especially along the forested western shore where visibility drops.
The lake's western shoreline has some exposed sections with drop-offs to the water. The rocks can be slick after rain, and there are no guardrails — keep younger hikers close and watch your footing.
Trail Details
Pro Tips
The Rockefeller Preserve parking lot fills by 9 AM in summer and operates on a strict capacity limit — no overflow, no shoulder parking, no exceptions. Arrive before 8 AM or after 3 PM, or take the shuttle from the Granite Canyon Trailhead.
Hike the loop counterclockwise. You'll knock out the western shore's rockier, more exposed section while your legs are fresh, and finish on the gentler eastern trail through the aspen groves — which is especially rewarding in late September when the whole hillside turns gold.
The jumping rock on the lake's east side sits about halfway through the loop. The water is cold enough to reset your entire nervous system even in August, so if you plan to swim, stash a dry layer in your pack rather than air-drying in the mountain breeze.
Photos
NPS Photo/C. Adams