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Seminoe State Park

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About Our Site - Seminoe State Park


The Seminoe Mountains surrounding Seminoe State Park were once the site for gold prospecting during the late 1800s. The name “Seminoe” is commonly assumed to come from the Seminole tribe, but is an Americanized spelling of the French name Cimineau. Basil Cimineau Lajeunesse was a French trapper in the area in the 1800s. Seminoe State Park, located on the northwest side of the reservoir, was established in 1965 through an agreement between the U.S. Bureau of Reclamation and the Wyoming Recreation Commission (predecessor to Wyoming State Parks and Historic Sites).

Seminoe State Park celebrates Free Fishing Day


May 24, 2021

Seminoe State Park celebrates Free Fishing Day, June 5, with a series of events lasting from 9:30 a.m. until 4 p.m. Camping and reservation fees still apply.

The day begins with a fishing demonstration and clinic from 9:30 a.m. until noon, and fishing and educational booths from 1 p.m. until 4 p.m.

Partnering with Wyoming State Parks in putting on the event is North Platte Walleyes Unlimited of Casper, the Wyoming Game and Fish Department and the U.S. Bureau of Reclamation.

For more information, please call Kyle Bernis at 307-275-0022.


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Site Status


COVID-19 Coronavirus
Important Information:

Camping in Wyoming State Parks now open to ALL visitors. Social distancing guidelines in place. 


  • Some of our reservoir parks are currently under harmful cyanobacterial bloom (HCB) advisories. 
  • Camping, boating, and fishing are still available.  
  • Please use caution when in or around the water. 
  • Additional information:



  • Open 24/7 - 365 days a year
  • Fee kiosks at each entrance



Phone Number


For Park Headquarters 307-320-3013

Camping Reservations 1-877-996-7275





 Seminoe State Park
 County Road 351
 Sinclair, WY 82334

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