Keyhole State Park
Wyoming State Park · Crook County
Keyhole State Park entrance fee
$7–$12 per vehicle — Day use: $7 per vehicle for Wyoming residents, $12 for non-residents (2026). Camping is charged per vehicle on top of day use.
Keyhole State Park hours
Our site is open year-round.
Hours as published by Wyoming State Parks, Historic Sites & Trails. Check the official page before a long drive.
About Keyhole State Park
Named for the McKean brothers' Keyhole cattle brand, this reservoir on the Black Hills' western edge holds walleye, catfish, smallmouth bass and northern pike with Devils Tower in view. Ten campgrounds ring the shore off I-90 between Sundance and Moorcroft.
Things to do
- 🥾 Hiking
- 🏊 Swimming
- 🎣 Fishing
- ⛵ Boating
- 🐎 Equestrian
- 🐦 Birding
- 🧭 Geocaching
- 🏹 Hunting
Amenities & facilities
- 🏕️ Campsites
- 🚿 Showers
- 🚻 Restrooms
- 🛖 Cabins
- 👥 Group Sites
- 🛝 Playground
- 🚤 Boat Ramp
- 🚐 RV Dump Station
RV / campsite hookups
- ⚡ Electric & Water
More Wyoming state parks with cabins · swimming · horseback riding
Camping options
- RV Campsites
- Electric Hookup Sites
- Group Campsites
Lodging options
- Cabins — $50.00 per night
Facility rentals
Pavilions and meeting rooms you can reserve for groups and events.
- Group picnic shelters — $50
Contact
Phone307-756-3596
Address22 Marina Rd, Moorcroft, WY 82721
🎒 Gear up for Keyhole State Park
Popular gear for what this park offers:
- Tents
- Fishing rods
- Binoculars
- Hiking boots
- Trail cameras
- Water shoes
- Life jackets
- Riding helmets
- Handheld GPS
- RV surge protector
- Bug spray
- Coolers
- Sleeping bags
- Camp chairs
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