Use sunset as your turnaround alarm.
Gem of a cirque lake below Ostler Peak.
3 liters water or hydration pack, hiking boots, layers, headlamp, trail mix and jerky, trekking poles, first-aid kit.
Make it a weekend: Uinta Backcountry Lakes (Fishing, 5 mi) · Mirror Lake (Uintas) (Fishing, 8 mi) · Mirror Lake Campground (Camping, 8 mi) · Moosehorn Campground (Camping, 9 mi)
More hikes nearby: Ruth Lake (Hike, 7 mi) · Lofty Lake Loop (Hike, 7 mi) · Fehr Lake Trail (Hike, 8 mi) · Bald Mountain (Hike, 9 mi)