Prior Flat Campground
4.569 reviewsPrior Flat Campground
Quick Facts
Price
Varies
Booking
Check Site
Sites
15 campsites
Season
Typical use season J...
Cell
Unknown
Pets
Not Allowed
Quick Facts
Price
Varies
Booking
Check Site
Sites
15 campsites
Season
Typical use season J...
Cell
Unknown
Pets
Not Allowed
Prior Flat Campground
No fees available
Campsite Fees
Standard Site Fee$0.00
Hookup Site Fee$0.00
Premium Site Fee$0.00
Hike and Bike Site Fee$0.00
Group Site Fee$0.00
Food Storage Locker Fee$0.00
Total Campsite Fees$0.00
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ProviderWhat Campers Say
4.56
Top-Rated
Based on 9 reviews
9 Google reviews
Most mentioned
quietlocationwell-maintainedsites
"Reviewers describe Prior Flat Campground as a quiet, peaceful, and scenic spot that often feels very uncrowded, with some guests having the entire campground to themselves. The campground is praised as well-maintained, simple, and convenient, with nice wooded sites and good views of wildlife. Lack of water is the main drawback noted, but most still rate it highly (4–5 stars)."
Best Time to Camp at Prior Flat Campground
Plan your visit between June 1 and November 15, when the mountain roads are most reliable and the weather cooperates for outdoor adventures. Outside this window, heavy rains transform access roads into impassable mud tracks, and spring snowmelt keeps this hidden gem temporarily out of reach—making the accessible months all the more precious for those seeking solitude in the Shirley Mountains.
Spring (Mar-May)
Wildflowers bloom, mild temperatures, fewer crowds. Great for hiking and photography.
Best
Summer (Jun-Aug)
Peak season with warm days. Most facilities open. Reserve ahead.
Fall (Sep-Nov)
Beautiful fall colors, cooler temps, quieter campgrounds. Ideal for peaceful trips.
Winter (Dec-Feb)
Off-season, limited services. Check for closures before visiting.
Planning Tips
- Operating Season: Typical use season June 1 through November 15 (roads become impassable after heavy rain and snow melt).
About Prior Flat Campground
Tucked into 9 acres at the base of the remote Shirley Mountains, Prior Flat Campground offers 15 intimate sites where the high desert meets mountain foothills. This peaceful retreat welcomes campers from June through mid-November with essential amenities and serves as your basecamp for fishing Sage Creek and exploring one of Wyoming's most secluded basins.
The campground contains 15 campsites with basic facilities (vault toilet, picnic tables, fire rings) and one pull-through site with parking spurs. No additional lodging or designated group/site types are specified.
Weather and SeasonsPlan your visit between June 1 and November 15, when the mountain roads are most reliable and the weather cooperates for outdoor adventures. Outside this window, heavy rains transform access roads into impassable mud tracks, and spring snowmelt keeps this hidden gem temporarily out of reach—making the accessible months all the more precious for those seeking solitude in the Shirley Mountains.
Natural Features and SceneryYour tent or RV will rest beneath a patchwork canopy of quaking aspen and hardy pines—limber and lodgepole—while big sagebrush stretches across the basin floor toward distant peaks. The Shirley Mountains rise behind you, a little-known range standing sentinel in the vast basin carved between the Medicine Bow and Ferris ranges. Keep your binoculars handy: pronghorn bound across the sage flats, mule deer and elk browse the hillsides at dawn and dusk, and golden eagles patrol the thermals overhead. Coyote songs echo at twilight, sage grouse strut through their ancestral grounds, and Sage Creek flows nearby, offering anglers a chance to test their skills in waters that see few lines.
Geological RegionNestled at the foot of the Shirley Mountains, the campground occupies a sweeping basin flanked by the Medicine Bow Mountains to the south and the Ferris Mountains to the north—a dramatic landscape of isolated ranges rising from high desert plains.
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Campsite details
Sites Size15 campsites on about 9 acres; includes one pull-through and parking spurs.
Total Campsites15 campsites
Recommended CampsitesCampground contains one pull-through site; all sites include picnic tables, fire rings/grills and parking spurs. Vault toilet available on site.
Best Campsites
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Reserving a campsite
Tents
Tents are not allowed
RV vehicles
RV vehicles are not allowed
Primitive
Primitive are not allowed
Reservable
Reservations are not allowed
Site layoutAbout 9 acres with 15 campsites including one pull-through; sites include picnic tables, fire rings/grills and parking spurs. A vault toilet is on site.
Open and Closed SeasonTypical use season June 1 through November 15 (roads become impassable after heavy rain and snow melt).
Cancellation PolicyTypical use season is from June 1 through November 15; roads may become impassable after heavy rain and snowmelt.
Amenities available
Fire rings
Picnic tables
Flush toilets
Vault toilets
Activities you can enjoy
Wildlife viewing and fishing are highlighted activities; the surrounding Shirley Mountains also provide hunting opportunities. The site is located near Sage Creek for fishing.
Fishing
Fishing available in Sage Creek.Wildlife viewing
Visitors can view pronghorn, mule deer, elk, coyotes, grouse, and golden eagles.Advertisement
Campground rules
- Pets are not allowed
- Campground provides fire rings/grills at campsites (no specific fire restrictions provided in source).
Hazards
General hazardsRoads can become impassable after heavy rain and snow melt; the campground is in a remote area. Wildlife (pronghorn, mule deer, elk, coyotes, grouse, golden eagles) is present.
Weather at Prior Flat Campground
37
°F
Dec 11
Thursday
Clear sky
Precipitation: 0%
Humidity: 78%
Wind: 34.5 mph
Clear sky
Weather History
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Reveal forecast
Good to know
Proximity to water featuresFishing available in Sage Creek (proximity to campground not specified).
Campground Map
Prior Flat Campground
Driving directionsFrom Medicine Bow: take WY-487 North approx. 21 miles, turn left on WY-77 for about 9 miles. Take County Rd 102 West for 9 miles to the Shirley Mtn Loop Rd (BLM Rd 3115). Campground is just up the hill about 1/4 mile. From Leo (north of Kortes Dam): go south 1 mile on BLM Road 3112 then east 13.5 miles on the Leo-Shirley Basin Road (County Road 102).
Access via WY-487, WY-77, County Road 102 and BLM roads (including BLM Rd 3115). Roads can become impassable after heavy rain and snow melt.Nearby places
Medicine Bow: approx. 21 miles on WY-487 then about 9 miles on WY-77 and about 9 miles on County Rd 102 plus ~1/4 mile on BLM Rd 3115 to the campground. From Leo (north of Kortes Dam): south 1 mile on BLM Road 3112 then east 13.5 miles on County Road 102.
Reviews from booking and map sources
4.6
9 reviews
Prior Flat Campground is top-rated, placing it in the top 15% of campgrounds based on reviews
Reviewers describe Prior Flat Campground as a quiet, peaceful, and scenic spot that often feels very uncrowded, with some guests having the entire campground to themselves. The campground is praised as well-maintained, simple, and convenient, with nice wooded sites and good views of wildlife. Lack of water is the main drawback noted, but most still rate it highly (4–5 stars).
Review Summaries
Based on 9 reviews
What Campers Love
Campers love the solitude and quiet—several mention that no one bothers you and that it can feel like having the whole campground to yourself. The setting is repeatedly described as beautiful, with...
Based on 9 reviewsShow more
Common Concerns
The most consistent complaint is the lack of potable water; multiple reviewers point out that there is no water available nearby. One reviewer also mentions occasional noise from vehicles traveling...
Based on 9 reviewsShow more
Pro Tips & Recommendations
Reviewers strongly suggest coming fully self-contained with your own drinking and utility water since there is no potable water on site. Be prepared for basic amenities—vault toilets only, no...
Based on 9 reviewsShow more
Camper Quotes
"I stayed here for a week. Most days and many nights I was the only one in the entire campground. It was beautiful, and quite peaceful."
"For what it is, its excellent. Vault toilet and no water but...
Based on 9 reviewsShow more
Site-Specific Reviews
One reviewer notes that some individual camping spots were flooded during their stay, but they were still able to find a dry site. Another mentions that there are several sites suitable for both RVs...
Based on 9 reviewsShow more
Camper Reviews by Outdoorithm campers
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Last updated December 10, 2025
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