Flat Mtn Arm S Camping Area

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Last Updated: December 4, 2025

Flat Mountain Arm S camping area in Wyoming offers free, first-come, first-served dispersed camping along the scenic shore of Fontenelle Reservoir.


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Summary

There are no established campsites, reservations, or permits required. Amenities are minimal—no toilets, drinking water, picnic tables, or hookups—though some spots may have informal fire rings. The area is best suited for self-contained RVs or tent campers seeking solitude. Expect wide-open, high-desert scenery with sweeping lake and mountain views. Popular for boating, fishing, and wildlife spotting. The terrain is flat and accessible via gravel roads. Spring through early fall offers the best weather. Ideal for quiet, off-grid camping with big skies and sunset vistas.

       

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Camping Essential Practices

Pack It In, Pack It Out
Take all trash, food scraps, and gear back with you to keep campsites clean and protect wildlife.
Respect Wildlife
Observe animals from a distance, store food securely, and never feed wildlife to maintain natural behavior and safety.
Know Before You Go
Check weather, fire restrictions, trail conditions, and permit requirements to ensure a safe and well-planned trip.
Minimize Campfire Impact
Use established fire rings, keep fires small, fully extinguish them, or opt for a camp stove when fires are restricted.
Leave What You Find
Preserve natural and cultural features by avoiding removal of plants, rocks, artifacts, or other elements of the environment.

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