Use sunset as your turnaround alarm.
Utah's 13,528 ft rooftop - usually a 2-3 day backpack via Henrys Fork.
3+ liters water, broken-in boots, layers for weather swings, headlamp, real food (jerky, trail mix), trekking poles, first-aid kit, and an early start.
Make it a weekend: Uinta Backcountry Lakes (Fishing, 20 mi) · Moon Lake (Fishing, 25 mi) · Moon Lake Campground (Camping, 25 mi) · Duchesne River (Fishing, 31 mi)
More hikes nearby: Amethyst Lake (Hike, 25 mi) · Ruth Lake (Hike, 31 mi) · Lofty Lake Loop (Hike, 31 mi) · Fehr Lake Trail (Hike, 33 mi)