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Content - Keyhole State Park

 
 

Events - Keyhole State Park

 
exclamation

Site Status

 

Attention:

All boat docks have been pulled for the season.

 

- - - - -
Water is Off:
Until May 2026

Closed:

Shower House
Seasonal closure

 

 

  • Camping reservation season is May 15th - September 15th. All campsites are first come, first served outside of this time period. Cabins in Tatanka may be reserved year-round through Reserve.Wyoming.Gov. A reservation is needed 48 hours in advance during the off-season.
  • Docks and water systems are typically available annually from May 15th - October 15th (weather permitting).
  • RV dump station is available seasonally, weather dependent.
  • Fish cleaning station is available seasonally.
  • Call 307-756-3596 to check current availability.
exclamation

Hours

 
  • Our site is open year-round.
  • Our fee booths (card only) are open Memorial Day through Labor Day. When the booths are closed, please use the automated fee machines (card only) located at every entrance or the fee canister (cash/check only) at the Headquarters entrance to pay fees.
  • The shower house is currently closed.

 

Map

Phone Number

 

307-756-3596

 

Map

 Location

 

 Keyhole State Park
 22 Marina Rd
 Moorcroft, WY 82721

↪ Get Directions

 

 

 
 

Gallery - Keyhole State Park

Bass
icefihsing
Cottonwood-Bay
KHPublic-Outreach
KHTimothy-Blade-2019
KHTreehousePetersen20182
KHPetersen201823
KHTreehousePetersen20187
KHPetersen201832
KHTreehousePetersen201816
cabin-3
KHPetersen201833
KHCabin-2
KH2017Treehouse01
KHOverlook
Catfish
KH2017Treehouse03
KH2017Treehouse08
KH2017Treehouse06
2023-Hunting-Map-1

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Bass icefihsing Cottonwood-Bay KHPublic-Outreach KHTimothy-Blade-2019 KHTreehousePetersen20182 KHPetersen201823 KHTreehousePetersen20187 KHPetersen201832 KHTreehousePetersen201816 cabin-3 KHPetersen201833 KHCabin-2 KH2017Treehouse01 KHOverlook Catfish KH2017Treehouse03 KH2017Treehouse08 KH2017Treehouse06 2023-Hunting-Map-1
 
exclamation

Site Status

 

Attention:

All boat docks have been pulled for the season.

 

- - - - -
Water is Off:
Until May 2026

Closed:

Shower House
Seasonal closure

 

 

  • Camping reservation season is May 15th - September 15th. All campsites are first come, first served outside of this time period. Cabins in Tatanka may be reserved year-round through Reserve.Wyoming.Gov. A reservation is needed 48 hours in advance during the off-season.
  • Docks and water systems are typically available annually from May 15th - October 15th (weather permitting).
  • RV dump station is available seasonally, weather dependent.
  • Fish cleaning station is available seasonally.
  • Call 307-756-3596 to check current availability.
exclamation

Hours

 
  • Our site is open year-round.
  • Our fee booths (card only) are open Memorial Day through Labor Day. When the booths are closed, please use the automated fee machines (card only) located at every entrance or the fee canister (cash/check only) at the Headquarters entrance to pay fees.
  • The shower house is currently closed.

 

Map

Phone Number

 

307-756-3596

 

Map

 Location

 

 Keyhole State Park
 22 Marina Rd
 Moorcroft, WY 82721

↪ Get Directions

 

 

 
 

About - Keyhole State Park

Description:

 

Keyhole State Park is located on the western edge of the famed Black Hills, between Sundance and Moorcroft, and is easily accessed off I-90 at exit 165. The Keyhole Dam, an earthfill structure, was completed by the Bureau of Reclamation in 1952. Within site of Devils Tower, Keyhole State Park is a mecca for both resident and migrating birds of all species, and offers excellent fishing for walleye, catfish, smallmouth bass, and northern pike.


History:

The Keyhole area centers on the reservoir, approximately 14,720 acres of water recreation opportunity. The elevation at Keyhole is 4,100 feet. Seasons are comparatively mild, with great weather from spring through fall, and some of the finest ice fishing in the state during the winter months. Keyhole State Park was named for the “Keyhole” livestock brand that was used by two brothers by the name of McKean. They established a ranch in the area.

 
exclamation

Site Status

 

Attention:

All boat docks have been pulled for the season.

 

- - - - -
Water is Off:
Until May 2026

Closed:

Shower House
Seasonal closure

 

 

  • Camping reservation season is May 15th - September 15th. All campsites are first come, first served outside of this time period. Cabins in Tatanka may be reserved year-round through Reserve.Wyoming.Gov. A reservation is needed 48 hours in advance during the off-season.
  • Docks and water systems are typically available annually from May 15th - October 15th (weather permitting).
  • RV dump station is available seasonally, weather dependent.
  • Fish cleaning station is available seasonally.
  • Call 307-756-3596 to check current availability.
exclamation

Hours

 
  • Our site is open year-round.
  • Our fee booths (card only) are open Memorial Day through Labor Day. When the booths are closed, please use the automated fee machines (card only) located at every entrance or the fee canister (cash/check only) at the Headquarters entrance to pay fees.
  • The shower house is currently closed.

 

Map

Phone Number

 

307-756-3596

 

Map

 Location

 

 Keyhole State Park
 22 Marina Rd
 Moorcroft, WY 82721

↪ Get Directions

 

 

 
 

Activities & Amenities

(Click images to learn more about the various Activities & Amenities)


  • 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.

 

Reminder: Online Survey for Proposed Projects at Keyhole State Park Closes Feb. 15


MOORCROFT, Wyo. – Feb. 3, 2026 – The Wyoming Department of State Parks and Cultural Resources reminds the public that the online survey related to the proposed projects at Keyhole State Park will close at midnight on Sunday, Feb. 15, 2026.


The survey follows a public forum held in January and provides an opportunity for park users, local residents, and stakeholders to review project information and share feedback if they were unable to attend the meeting in person.

“Public input is an important part of our planning process,” said Carly-Ann Carruthers, planning manager for the Wyoming Department of State Parks and Cultural Resources. “We encourage anyone who has not yet shared their thoughts to take a few minutes to complete the survey before it closes.”

Presentation materials from the public forum and the online survey are available at Bit.ly/WYPublicForum. All comments must be submitted by 11:59 p.m. on Sunday, Feb. 15, 2026.


The proposed Coulter Bay Visitor Center is intended to enhance recreation and educational opportunities at Keyhole State Park by providing improved visitor services, interpretive exhibits, and a community gathering space, while serving as a launch point for park recreation.

“It’s important that this facility reflects the expectations and needs of the people who use and care about Keyhole State Park,” said Misty Moore, district manager for Wyoming State Parks. “We appreciate everyone who has taken the time to provide feedback.”


For more information, visit wyoparks.wyo.gov/keyhole or contact Carly-Ann Carruthers, planning manager, at This email address is being protected from spambots. You need JavaScript enabled to view it. or Misty Moore, district manager, at This email address is being protected from spambots. You need JavaScript enabled to view it..

Coulter-BAy-AreaKeyhole-State-Park

Figure 1: Keyhole State Park. 

 

 

Park Fees

Click here to view the Permits & Fees page

 

 
exclamation

Site Status

 

Attention:

All boat docks have been pulled for the season.

 

- - - - -
Water is Off:
Until May 2026

Closed:

Shower House
Seasonal closure

 

 

  • Camping reservation season is May 15th - September 15th. All campsites are first come, first served outside of this time period. Cabins in Tatanka may be reserved year-round through Reserve.Wyoming.Gov. A reservation is needed 48 hours in advance during the off-season.
  • Docks and water systems are typically available annually from May 15th - October 15th (weather permitting).
  • RV dump station is available seasonally, weather dependent.
  • Fish cleaning station is available seasonally.
  • Call 307-756-3596 to check current availability.
exclamation

Hours

 
  • Our site is open year-round.
  • Our fee booths (card only) are open Memorial Day through Labor Day. When the booths are closed, please use the automated fee machines (card only) located at every entrance or the fee canister (cash/check only) at the Headquarters entrance to pay fees.
  • The shower house is currently closed.

 

Map

Phone Number

 

307-756-3596

 

Map

 Location

 

 Keyhole State Park
 22 Marina Rd
 Moorcroft, WY 82721

↪ Get Directions

 

 

 
 

Maps & Brochures - Keyhole State Park

 

Environmentally Friendly Option: 

 
In an effort to be more environmentally friendly, the Wyoming Division of State Parks, Historic Sites, and Trails invites our visitors to download PDFs of our brochures on their devices before heading to our parks and historic sites. Cell coverage at some of our sites can be limited, pre-loading our brochures not only ensures availability but saves on paper, as well. 
 
 
exclamation

Site Status

 

Attention:

All boat docks have been pulled for the season.

 

- - - - -
Water is Off:
Until May 2026

Closed:

Shower House
Seasonal closure

 

 

  • Camping reservation season is May 15th - September 15th. All campsites are first come, first served outside of this time period. Cabins in Tatanka may be reserved year-round through Reserve.Wyoming.Gov. A reservation is needed 48 hours in advance during the off-season.
  • Docks and water systems are typically available annually from May 15th - October 15th (weather permitting).
  • RV dump station is available seasonally, weather dependent.
  • Fish cleaning station is available seasonally.
  • Call 307-756-3596 to check current availability.
exclamation

Hours

 
  • Our site is open year-round.
  • Our fee booths (card only) are open Memorial Day through Labor Day. When the booths are closed, please use the automated fee machines (card only) located at every entrance or the fee canister (cash/check only) at the Headquarters entrance to pay fees.
  • The shower house is currently closed.

 

Map

Phone Number

 

307-756-3596

 

Map

 Location

 

 Keyhole State Park
 22 Marina Rd
 Moorcroft, WY 82721

↪ Get Directions

 

 

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