Keyhole Reservoir

Keyhole Reservoir
44.35667° N, -104.779° W

Keyhole Reservoir, a vast expanse of water on the western edge of the Black Hills in northeastern Wyoming, beckons adventure seekers, wellness enthusiasts, and families alike. This 14,720-acre reservoir, created by the Keyhole Dam in 1952, offers a multitude of activities that cater to diverse interests. For water sports enthusiasts, the reservoir is perfect for boating, water skiing, canoeing, kayaking, and even wind surfing. The shores are dotted with nine campgrounds, providing stunning views and comfortable stays.

Nearby, the iconic Devils Tower National Monument stands as a striking landmark, while the towns of Sundance and Moorcroft provide a glimpse into local culture. Bird-watchers will find Keyhole Reservoir a paradise, with numerous species migrating through the area. Fishing is another major draw, with species like walleye, catfish, and northern pike awaiting anglers. For those seeking relaxation, the mild seasons from spring to fall and the opportunity for ice fishing in winter make Keyhole Reservoir an ideal destination for all seasons. Whether you’re hiking through the surrounding trails, picnicking by the lake, or simply enjoying the serene beauty, Keyhole Reservoir is a must-visit for any traveler.

Surface area (mi)
37.28
Max depth (ft)
40.03
Elevation (ft)
4114.17
Shoreline length (mi)
53
Best time to go
Visit Keyhole Reservoir in late spring, from mid-May to early June, when wildflowers bloom and the air is crisp. This serene sanctuary offers tranquil fishing, invigorating kayaking, and sun-drenched days—perfect for a peaceful escape before summer crowds arrive.
Water Quality
Okhissa Lake is known for its gin-clear water, which is ultra-clear and see-through. The water color is often described as clear or blue. The shoreline, situated in the Homochitto National Forest, offers a pristine and natural scenery with dense forest surroundings. The lake's clarity allows for visibility into its depths, enhancing the overall aesthetic of its mirrored-like surface.

Ideal for

  • Family friendly:
  • Pet friendly:
  • Romantic getaways:

Popular activities

  • Boating
  • Waterskiing
  • Swimming
  • Fishing
  • Hiking

Islands

Amidst the shimmering waters of Keyhole Reservoir, unique islands emerge like emerald gems, each rich with untold stories and adventures waiting to unfold. The islands are more than mere specks on the map; they hold remnants of a bygone era, whispering the history of pioneers navigating these waters in search of fortune. One island features a historic lighthouse, offering panoramic vistas that beckon photographers and lovers of nature alike. Scenic hiking trails meander through rugged landscapes, leading to stunning lookouts that reveal the lake’s sweeping beauty, ideal for capturing the perfect sunset shot. Visitors can stroll along sandy beaches, partake in water sports, or simply indulge in a serene picnic while watching eagles soar overhead. For those enchanted by exploration, the islands serve as crucial waypoints for boaters and a tranquil refuge for fishermen, making them a versatile destination for outdoor enthusiasts seeking both adventure and introspection.

Nearby amenities

For a fulfilling experience at Keyhole Reservoir, various amenities cater to your recreational needs. Boating enthusiasts can take advantage of the Keyhole Marina, offering a boat ramp, fuel dock, and jet ski rentals. There are also canoe and kayak launch areas available for more leisurely water activities. Nearby, Pilgrim Creek Campground provides both tent and RV sites for overnight stays, as well as designated picnic areas equipped with BBQ grills. For dining, the Lakeview Lodge Restaurant features scenic patio options and hearty meals to enjoy after a day on the water. Stock up on supplies at the local general store or the fishing supply shop, and don’t forget to visit the bait and tackle shop for all your fishing needs. Restroom facilities, including showers and changing rooms, are conveniently located for day visitors. The area also boasts accessible paths and day-use parking to improve convenience and mobility for everyone.

Frequently Asked Questions

Ready to dive into what Keyhole Reservoir has to offer? Let’s tackle some of the burning questions you might have as you plan your visit!

  • Yes, swimming is allowed in Keyhole Reservoir but only in designated areas. Swimming areas are specifically marked for safety and convenience.

  • Keyhole Reservoir is a popular destination because it offers extensive recreational activities. The reservoir has over 14,000 acres for fishing, five boat ramps, and amenities like camping, swimming, boating, and hiking. It also features a variety of fish species including walleye, bass, and northern pike.

  • You can catch various fish species in Keyhole Reservoir, including Black Crappie, Channel Catfish, Lake Trout, Largemouth Bass, Northern Pike, Smallmouth Bass, White Crappie, Yellow Perch, and Walleye. The reservoir also contains Green Sunfish and Freshwater Drum. These species make the reservoir a diverse fishing spot.

  • There is no dog-friendly beach at Keyhole Reservoir. The designated beach area at Keyhole State Park does not allow pets. Pets are allowed in other areas of the park but must be kept on a leash.

  • The town near Keyhole Reservoir is Pine Haven. It is the closest community and also borders Devils Tower National Monument. Keyhole Reservoir is also about 17 miles northeast of Moorcroft, Wyoming.

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Keyhole Reservoir
Keyhole Reservoir