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Boating - KEYHOLE

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Boating - KEYHOLE


Keyhole State Park is on Keyhole Reservoir, which has 14,720 acres of navigable water for fishing and recreational use.

More information:

  • Boats must be properly registered and inspected prior to launching for aquatic invasive species.
  • Please ensure your boat is properly equipped with safety equipment, i.e., life jackets, fire extinguishers, etc.
  • Additional information on current boat ramp levels located HERE.


  • Keyhole State Park is located in the northeast corner of Wyoming, just 6 miles off of Highway I-90.
  • Take exit 165, and go North, until you reach the park entrance.
  • Boating is available year-round, as long as the ice is off the lake. Normally ice covers the lake in the winter, starting any where from October to December.
  • The ice comes off the lake in late March to early May.

You must pay the park daily use fee.

Click here to view the Permits & Fees page




Site Status


COVID-19 Coronavirus
Important Information:

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

Harmful Cyanobacterial Bloom (HCB) Advisories in effect for Keyhole Reservoir.

Please click here to visit the DEQ website for more information. 


  • Most boat docks at Keyhole State Park have been pulled for the winter season.   
    • Important: Due to the lake beginning to freeze, the boat dock at Coulter Bay could be pulled at anytime between now and December 14th.
  • Shower house is now closed
  • Drinking water systems will be closed starting on October 1st
  • RV dump station will remain open until November 1st (weather permitting)


  • Our site is up and running year-round.
  • Our fee booths are open May thru October. When the booths are closed please use the fee canisters located at each entrance to pay fees.
  • Our office hours of operation are 7 a.m. to 3:30 p.m., Monday thru Friday.



Phone Number







 Keyhole State Park
 22 Marina Rd
 Moorcroft, WY 82721

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