Keyhole State Park

Moorcroft, Wyoming
Established 1960
1,900 acres

Keyhole State Park is a reservoir-based recreation area in northeastern Wyoming known for boating, fishing, swimming, camping, and wide-open prairie scenery. Centered on Keyhole Reservoir, the park offers easy access to water activities, wildlife viewing, and family-friendly day use areas near the Montana border.

Entrance Fee

7

Visiting with Dogs

Dogs allowed in park; keep them leashed and under control. Clean up after pets and follow posted area restrictions.

Visitor Tips & Reviews

What Visitors Say

Scenic reservoir views, great boating, fishing, camping, and swimming. Visitors love the peaceful setting, sunsets, wildlife, and family-friendly recreation, though wind and busy summer weekends can affect the experience.

Tips from Visitors

  • Check weather before boating; winds can change quickly.
  • Bring sunscreen and water; shade is limited.
  • Use designated campsites and follow posted fire restrictions.
  • Watch for wildlife, especially near dawn and dusk.
  • Carry extra fuel and supplies; services may be limited.

Best Time to Visit

The best time to visit Keyhole State Park is late spring through early fall, when warm weather makes boating, swimming, and camping most enjoyable. Summer weekends are busiest, while May, June, and September often offer pleasant conditions and fewer crowds.

Amenities

Kids PlaygroundRestroomsParkingPicnic AreasBoat RampMarinaCampgroundsShowersDrinking WaterDump StationSwimming AreaFishing AccessADA Accessible Facilities

Nearby Attractions

Explore these attractions near Keyhole State Park:

  • Moorcroft Museum
    A small local museum highlighting the history of Moorcroft and the surrounding area, including ranching and railroad heritage.
    12 miles away
  • Devils Tower National Monument
    An iconic volcanic butte and one of the region’s most famous landmarks, offering hiking, climbing, and interpretive exhibits.
    40 miles away
  • Black Hills National Forest
    A large forested recreation region with scenic drives, hiking, camping, and wildlife viewing across the nearby Black Hills.
    45 miles away

Things to Do at Keyhole State Park

BoatingFishingCampingSwimmingWildlife Viewing

Camping at Keyhole State Park

Keyhole State Park offers tent and RV camping with hookups, restrooms, showers, fire rings, and reservations recommended seasonally.

Hiking Trails

Keyhole State Park offers easy, scenic day hikes with a mix of lake views, rolling hills, and open prairie. Trails are generally well-marked and family-friendly, making them popular for casual walkers and hikers looking for a relaxed outing. Visitors often enjoy wildlife sightings, quiet shoreline stretches, and beautiful sunsets, though shade can be limited and summer heat can be strong.

Keyhole Reservoir Shoreline Trail

Easy

A scenic shoreline hike with views of the reservoir, rocky coves, and opportunities for wildlife viewing near the water.

6.5 mi
2.5-3.5 hours
200 ft gain
Easy difficulty

Keyhole State Park Loop Trail

Easy

A gentle loop through open prairie and lakeside terrain, ideal for a relaxed hike with broad views of the park.

4.2 mi
1.5-2.5 hours
150 ft gain
Easy difficulty

North Shore Overlook Trail

Moderate

A shorter trail that climbs to elevated viewpoints overlooking Keyhole Reservoir and the surrounding bluffs.

3.8 mi
1.5-2 hours
350 ft gain
Moderate difficulty

Campground Connector Trail

Easy

A convenient trail linking park facilities and nearby scenic areas, suitable for families and casual walkers.

2.1 mi
45-75 minutes
75 ft gain
Easy difficulty

Directions

From I-90, take Exit 165 near Moorcroft and follow WY-24 north, then park signs to Keyhole State Park. The main entrance and marina are reached by paved roads; allow about 15 minutes from Moorcroft.

Frequently Asked Questions

What activities can I do at Keyhole State Park?

Visitors commonly come for boating, fishing, swimming, camping, and picnicking. Many reviews mention the reservoir as the main draw, especially for water recreation and relaxing by the shore.

Is Keyhole State Park good for camping?

Yes. Campers often describe it as a convenient lakeside camping spot with scenic views and easy access to the water. Sites can be popular in summer, so reservations or early arrival are a good idea.

Can I fish at Keyhole State Park?

Yes, fishing is one of the park’s most popular activities. Visitors often report good opportunities for catching walleye, crappie, and catfish, depending on conditions and season.

Are there boat ramps and marina services?

Yes. The park is known for boating access, and many visitors use the boat ramps to launch into Keyhole Reservoir. Reviews often mention it as a convenient place for day boating and water sports.

Is Keyhole State Park family-friendly?

Yes. Families often enjoy the swimming, open water, picnic areas, and camping. Reviews commonly note that it’s a good place for a relaxed day outdoors, especially in warm weather.

What should I know before visiting Keyhole State Park?

Bring sun protection, water, and supplies, especially in summer when it can be hot and busy. Visitors often mention wind on the reservoir and limited shade in some areas, so planning ahead helps.

Location
camping and backpacking gear

Don’t Forget the Essentials

Essential camping & hiking gear we recommend to make your park trip easier and more comfortable.

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