Diamond Lake is a 6.8 mile lightly trafficked out and back trail located near Boulder, WY and is good for all skill levels. The trail is primarily used for hiking and is accessible from June until October.
From Pinedale, drive south on Hwy 191. At Boulder, turn left on Hwy 353 and drive 18 miles to the end of the pavement. Shorty after the pavement ends, go straight through the junction, and drive south crossing the Big Sandy River (Buckskin Crossing). At next junction, turn left (east) and drive 7 miles. Turn left at the following jct and follow the main road to the Big Sandy Campground and trailhead. This trailhead is remote, so be sure to have a full tank of gas.
Nice trail that I used on the return from Big Sandy Lake. Passed V Lake, Diamond Lake and Meeks lake. Beautiful meadows and trees around all lakes with view of the mountains in the distance.