Mileage: 2 1/4 miles one way
Elevation: 6880 to 6880 feet
Difficulty: More Difficult
Use Level: Medium
Topographic Map: English Mtn.

Access: Crooked Lake Trail is accessed at its northern end by Lindsey Lakes Trail and at its southern end by Round Lake Trail.

Trail Description: This trail extends from Island Lake to Upper Rock Lake. The trail is maintained from Island Lake to Penner Lake, one of the most scenic of the Grouse Lakes, with good fishing and a number of good campsites. From Penner Lake the trail climbs to a forested ridge and then descends to Upper Rock Lake.