Keyhole State Park wilderness guide
State Park · WY

Keyhole State Park

Keyhole State Park is a tranquil escape in northeastern Wyoming, offering a scenic reservoir and numerous recreational opportunities set against a natural backdrop.

State Park14,7202+ Trails

Designation

State Park

Total Wilderness Area

14,720

Elevation / Terrain

Diverse Wilderness

Field Editorial Guide

About Keyhole State Park

Keyhole State Park is a tranquil escape in northeastern Wyoming, offering a scenic reservoir and numerous recreational opportunities set against a natural backdrop.

Wilderness Landscape & Natural Heritage

Keyhole State Park, located in the scenic setting of northeastern Wyoming, features the expansive Keyhole Reservoir, which serves as the park's centerpiece. This state park spans a diverse landscape of forested areas, rolling hills, and open spaces, providing a habitat for a variety of wildlife, including white-tailed deer, pronghorns, and numerous bird species. The park's history dates back to the construction of the Keyhole Dam in 1952, which created the reservoir as part of the Bureau of Reclamation's efforts in the region. Visitors to the park can engage in a variety of outdoor activities, from boating and fishing on the serene waters of the reservoir to hiking and mountain biking along its trails. The park is also a favored spot for camping, with well-maintained campgrounds offering both primitive and developed options. Notable features include the impressive vistas from different points around the reservoir and opportunities for wildlife viewing. Keyhole State Park stands out for its combination of water-based recreation and land exploration, making it a sought-after destination for those seeking relaxation and adventure alike.

Field Guide · State Park
Adventure Destinations

Notable Destinations Near Keyhole State Park

Scenic viewpoints, outdoor landmarks, and notable points of interest within 60 miles.

Key Wilderness Highlights

✦ Keyhole Reservoir offers excellent opportunities for fishing and boating.✦ The park hosts a variety of bird species, making it a haven for birdwatchers.✦ Sandy Beach offers a relaxing spot for picnics and family outings.✦ Hiking trails provide scenic views and wildlife observation opportunities.
Wilderness Recreation

Outdoor Adventures in Keyhole State Park

Explore curated guides for top outdoor sports, trail networks, and wilderness activities.

Park Recreation

Hiking

Available in Keyhole State Park
Park Recreation

Camping

Available in Keyhole State Park
Park Recreation

Wildlife Viewing

Available in Keyhole State Park
Park Recreation

Fishing

Available in Keyhole State Park
Park Recreation

Paddle Sports

Available in Keyhole State Park
Park Recreation

Photography

Available in Keyhole State Park
Park Recreation

Scenic Drives

Available in Keyhole State Park
The Ranger Station

Visitor Logistics & Essential Planning

Everything you need to know about entrance passes, seasons, visitor centers, road transit, and wildlife safety in Keyhole State Park.

Passes & Fees

Entrance Requirements & Interagency Passes

Day use fee required; annual passes are available.

Wilderness Checklist

Carry paper topographic map & compass in remote zones.
Store all food and scented items in approved bear canisters.
Check wildfire / smoke advisories before backcountry departure.
Pack out everything you pack in (Leave No Trace).
Wilderness Stays

Camping & Overnight Stays in Keyhole State Park

Frontcountry developed campgrounds, backcountry wilderness permit guidelines, and starry-night camping advice.

Tatanka Campground

Located near the reservoir, this campground offers facilities and easy access to water activities.

Pronghorn Campground

A quieter spot with fewer amenities, ideal for a more rustic camping experience.

Adventure Basecamps

Gateway Towns Near Keyhole State Park

Stay, dine, and gear up in these mountain towns and scenic basecamps surrounding the park.

Sundance, Wyoming
⌖ 17.49 miles
Gateway Basecamp

Sundance, Wyoming

Sundance, Wyoming is an adventure seeker's paradise offering hiking, biking, and climbing against the stunning backdrop of the Black Hills. With diverse activities and rich history, it's the perfect getaway.

Summer and Fall
Explore Town
Hulett, Wyoming
⌖ 23.19 miles
Gateway Basecamp

Hulett, Wyoming

Hulett is a charming town at the doorstep of Devils Tower, offering hiking, biking, and outdoor activities amid stunning Wyoming landscapes. Its remote location ensures a peaceful retreat for adventurers.

Summer and Fall
Explore Town
Red Lodge, Wyoming
⌖ 38.00 miles
Gateway Basecamp

Red Lodge, Wyoming

Red Lodge offers outdoor enthusiasts opportunities for hiking, skiing, and wildlife viewing in a beautiful mountain setting, with western hospitality and charm.

Spring and Summer
Explore Town
Gillette, Wyoming
⌖ 38.75 miles
Gateway Basecamp

Gillette, Wyoming

Gillette, Wyoming offers outdoor fans wide-open prairie landscapes, low-key trails, and rugged terrain in Thunder Basin National Grassland. This town is a great basecamp for hiking, biking, camping, and snowmobiling throughout the seasons.

Late Spring through Early Fall
Explore Town
Newcastle, Wyoming
⌖ 43.48 miles
Gateway Basecamp

Newcastle, Wyoming

Newcastle, Wyoming is a gateway to expansive grasslands and forested hills, offering hiking, mountain biking, wildlife viewing, and winter snowmobiling. Its wide-open spaces and historic small-town charm make it a unique base for outdoor enthusiasts.

Late spring to early fall for hiking and biking; winter for snowmobiling
Explore Town
Spearfish, South Dakota
⌖ 43.87 miles
Gateway Basecamp

Spearfish, South Dakota

Spearfish, SD, is an adventurer’s hub offering access to the stunning Spearfish Canyon and the Black Hills. Enjoy hiking, biking, and fishing, or camp under the stars in pristine landscapes.

Spring and Fall
Explore Town
Expert-Led Wilderness Expeditions

Guided Experiences in Keyhole State Park

Explore scenic backcountry routes and epic wilderness adventures with certified local mountain guides, naturalists, and outfitters.