

State Park
Prior Flat Campground
Hanna, WY
Verify with the state park system
State parks set their own rules and reservation systems. Fire bans, road closures, and operating dates change seasonally — check the state park website before traveling.
Pricing
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Official sources & verification
Managed by State Park
Source of truth
- Operator website
Listed website for the campground operator.
Verify by phone or mail
- Operator:307-328-4200
- Email:Rawlins_WYMail@blm.gov
- Address:Rawlins Field Office · Hanna, WY · 82301
Live availability
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Availability is a recent snapshot, not a live hold — you always complete the booking on recreation.gov.
About
The Prior Flat Campground has 15 campsites and a vault toilet on about 9 acres. It has one pull-through, picnic tables, fire rings/grills and parking spurs. The campground is located at the foot of the Shirley Mountains, a remote range in a large basin between the Medicine Bow and the Ferris Mountains. Visitors will enjoy the aspen, limber pine, lodgepole pine, big sagebrush and can view pronghorn, mule deer, elk, coyotes, grouse and golden eagles. The Shirley Mountains offer fantastic hunting opportunities and fishing in Sage Creek. Typical use season is from June 1st through November 15th because the roads become impassable after heavy rain and snow melt. No horses allowed in campground.
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Amenities
Flush Toilets
Picnic Tables
Pet Policy
No pets allowed
Campground Rules
- No campfires allowed
Within ~30 miles
Trails near Prior Flat Campground
Hunt context
Hunting unit around this campground
During hunting seasons, wear blaze orange and check regulations — see the Wyoming hunting page
Nearby Campgrounds
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