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Established Camping

Prior Flat Campground


Bureau of Land Management

Bureau of Land Management

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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Prior Flat Campground is located in Wyoming

Detail location of campground


From 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).


42.241836 N
106.584421 W

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out of 5

1 Review

Reviewed Apr. 25, 2021

Great starting point

Before I moved from Wyoming, I spent most weekends there from the time the snow melted. I things have changed some but my family still spends all summer and fall up there. There are no services but it's a wonderful place to stay.

Month of VisitNovember

Frequently Asked Questions

Does Prior Flat Campground have wifi?

No, according to campers on, Prior Flat Campground does not have wifi.