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Hidden Gem

Guernsey State Park

Lakeshore Dr, Guernsey, WY

Guernsey, WY

Hand-built stone shelters and a museum raised by the Civilian Conservation Corps above a reservoir on the old Oregon Trail.

Guernsey State Park is one of the finest showcases anywhere of the work of the Civilian Conservation Corps, the Depression-era program that put young men to work building America's parks. In the 1930s CCC crews shaped local stone and timber into shelters, overlooks, roads, and a remarkable museum, all above a reservoir on the North Platte River.

The setting carries its own deep history. This stretch of the North Platte was a corridor of the Oregon, California, and Mormon trails, where hundreds of thousands of emigrants passed on their way west, leaving wagon ruts worn deep into the rock nearby. Guernsey pairs that trail history with some of the most beautiful public architecture in the state.

What Guests Love

  • The Castle, a hand-built stone shelter perched on a bluff over the reservoir
  • The Guernsey State Park Museum, a National Historic Landmark of CCC craftsmanship
  • Brimmer Point and other stone overlooks with sweeping river views
  • Standing near the deep wagon ruts and Register Cliff of the Oregon Trail nearby

Worth Knowing

  • The museum and some facilities are seasonal, so check hours for an off-season visit
  • The CCC stonework is historic; enjoy it and help protect it by treating it gently
  • Summer is warm and busy on the water; spring and fall are quiet and pleasant
  • The nearby Oregon Trail ruts and Register Cliff are just outside the park and well worth pairing with a visit

Details

AddressLakeshore Dr, Guernsey, WY
Guernsey, WY
Websitewyoparks.wyo.govLink opens in a new tab.

Learn about Guernsey State Park

The Civilian Conservation Corps and its craft

During the Great Depression, the Civilian Conservation Corps employed young men on public conservation projects across the country, and Guernsey became one of their showpieces. The park was among the early cooperative efforts joining the National Park Service, the CCC, and the federal reclamation program on one site.

Working largely by hand with local stone and heavy timber, the crews built in a rugged, rustic style meant to blend into the landscape. Their shelters, walls, culverts, roads, and overlooks feel grown from the bluffs themselves, and much of it stands sound and beautiful nearly a century later.

The Castle and the museum

The most beloved of the CCC structures is the Castle, a large stone picnic shelter set dramatically on a point above the reservoir, with arched openings framing the water and hills. It looks like a medieval ruin dropped into Wyoming, and it is a favorite spot to take in the view.

The Guernsey State Park Museum is even more celebrated, honored as a National Historic Landmark for its craftsmanship and its interpretation of the CCC's work and the region's natural history. Its stone-and-timber building is itself an exhibit, and the overlook at Brimmer Point nearby offers one of the great views over the North Platte valley.

The reservoir and the river

Guernsey Reservoir, formed by a dam on the North Platte, is the recreational heart of the park, with boating, fishing, swimming beaches, and campgrounds along its shores. The water is drawn down at times for irrigation and river management, which shapes the season on the lake.

The North Platte itself has always been a lifeline through this dry country, for wildlife, for Native peoples, and later for the wagon trains that followed its valley west. The park's overlooks tie the modern reservoir to that long story of the river as a road and a resource.

Trails of the past and wildlife today

Just outside the park lie two of the most vivid remnants of the overland migration: the Oregon Trail Ruts, where iron wagon wheels and hooves cut grooves several feet deep into a sandstone ridge, and Register Cliff, where emigrants carved their names as they passed. This country was long the homeland of the Lakota, Cheyenne, and other Plains tribes before the wagons came.

In the park itself, mule deer, wild turkeys, and a variety of birds move through the pine and juniper bluffs, and raptors ride the winds above the river. Summer is the busy, warm season on the water, fall is crisp and quiet, and winter brings cold and snow to the stone shelters standing empty above the reservoir.

Closest Boutels

The closest Boutel™ stays, so you can turn this stop into an overnight. Each is an independently owned, editorially selected place to stay.

Rocket Motel

Boutel

211 Mount Rushmore Rd, Custer, SD

(605) 673-4401

116 miles away|Learn More ›

Bavarian Inn Black Hills

Boutel+

855 N Fifth St, Custer, SD

(605) 673-2802

116 miles away|Learn More ›

Kinnikinnik Motor Lodge

Boutel

760 S St Vrain Ave, Estes Park, CO

(720) 910-3276

140 miles away|Learn More ›

Things to Do Near Guernsey

Oregon Trail Ruts

About 2 miles south

Deep wagon ruts cut into sandstone by hundreds of thousands of passing emigrants, a National Historic Landmark.

Register Cliff

About 3 miles south

A soft cliff where trail emigrants carved their names, some still legible today.

Fort Laramie National Historic Site

About 13 miles east

A restored frontier fort central to the fur trade, the emigrant trails, and Plains treaties.