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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. 


  • Most boat docks at Keyhole State Park have been pulled for the winter season.  However, one boat dock will remain available to boaters until November 15, 2020
    • The available dock is located at the Coulter Bay ramp
    • If the weather turns bad, and it looks like the lake will freeze up, the Coulter Bay dock could be pulled earlier.
  • 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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