Simpson Lake

No permit or access details on file for this trail — check with the local land manager before you go.

Simpson Lake is a 24.5-mile out-and-back trail located in Wyoming. This backcountry route offers hikers an extended wilderness experience through the state's remote landscape. The out-and-back format means travelers will cover approximately 12.25 miles to reach the lake, with the same distance for the return journey. The trail provides access to Simpson Lake, a destination that rewards backpackers and day hikers willing to commit to the longer mileage. Due to the distance involved, this route is best suited for experienced hikers with solid endurance levels. The out-and-back design allows flexible turnaround times, making it possible to adjust your trip based on conditions and energy levels. Hikers should plan accordingly for a full-day or multi-day adventure. Water sources and trail conditions may vary seasonally, so checking current conditions before departure is recommended. The remote nature of this Wyoming trail offers solitude and access to undeveloped backcountry terrain, typical of the state's wilderness areas.