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Keyhole State Park

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  • About Our Site
  • Updates
  • Park Fees
  • Events


About Our Site - Keyhole State Park


Keyhole State Park offers swimming, hiking, boating, water skiing, bird-watching and fishing. Some of the state’s largest fish have been caught at Keyhole. You can also reserve one of our 3 group shelters to host weddings, family get togethers and company picnics. Keyhole State Park is located on the western edge of the Black Hills, between Sundance and Moorcroft, and is easily accessed off I-90 at exit 165. Travel north 6 miles and the entrance to Park Headquarters will be on your left. Keyhole State Park has 10 campgrounds, all of which are reservation only.



Keyhole State Park to Host Lanternfest

Keyhole State Park to Host Lanternfest
Keyhole State Park will host Lanternfest Saturday August 5th. This family-friendly event will provide opportunities for kayaking and paddleboarding as well as glow painting and other outdoor activities and games which are all free with the price of park admission.
The event begins at 10am at Keyhole's beach area south of the marina in which people are invited to help clean up the beach. 
From 5pm - 8pm activities will be held at the boat launch within Keyhole's Tatanka Campground and will include Kayaking & Paddle Boarding, Glow Painting, Flower Stamp Making, and Yard Games. From 8pm-9pm, guests can enjoy s'mores provided by the park at the boat launch while sending lanterns they've decorated out onto the lake. "The glowing orange lanterns will float on the lake, illuminating the surrounding area, and create a magical nighttime experience," says Emma Jones, Keyhole's Interpretive Ranger.



Park Fees

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Site Status

  • Docks and water systems are typically available annually from May 15th - October 15th (weather permitting).
  • RV dump station is available seasonally, weather dependent.
  • Call 307-756-3596 to check current availability.


  • Our site is up and running year-round.
  • Our fee booths are open May through September. When the booths are closed, please use the automated fee machines (card only) located at each entrance or the fee canister (cash only) at the Headquarters entrance to pay fees.



Phone Number







 Keyhole State Park
 22 Marina Rd
 Moorcroft, WY 82721

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