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Dworshak

United States, Idaho

Dworshak

LocationUnited States, Idaho
RegionIdaho
TypeState Park
Coordinates46.5672°, -116.3809°
Established1970
Area3.44
Nearest CityOrofino (15 mi)
Major CityLewiston (50 mi)
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About Dworshak

Dworshak State Park is located on the shores of Dworshak Reservoir in north-central Idaho, offering 850 acres of forested recreation land along one of the deepest reservoirs in North America. The park provides access to 54-mile-long Dworshak Reservoir, created by Dworshak Dam, one of the highest straight-axis concrete dams in the world. Set within the Clearwater National Forest, the park offers exceptional fishing, boating, and camping in a remote, forested setting with stunning views of the reservoir and surrounding mountains.

Wildlife Ecosystems

The reservoir and surrounding forests support abundant wildlife typical of the Northern Rocky Mountains. White-tailed deer and elk are commonly seen in the park, while moose occasionally visit wetland areas. Black bears inhabit the forests and may be encountered, requiring proper food storage. The reservoir contains populations of smallmouth bass, rainbow trout, kokanee salmon, and native bull trout. Osprey and bald eagles fish the reservoir, while various hawks hunt the forest edges. Wild turkeys, ruffed grouse, and numerous songbird species inhabit the mixed conifer forests.

Flora Ecosystems

Dworshak State Park lies within the western red cedar and grand fir forest zone characteristic of the Northern Rocky Mountains. Dominant trees include western red cedar, grand fir, Douglas fir, western white pine, and ponderosa pine at lower elevations. The understory features ninebark, oceanspray, serviceberry, and various ferns and wildflowers. Riparian vegetation along streams includes black cottonwood, red alder, and willows. The diverse forest community provides important habitat for wildlife and maintains the scenic character of the reservoir shoreline.

Geology

Dworshak Reservoir occupies the canyon of the North Fork Clearwater River, carved through ancient metamorphic rocks of the Belt Supergroup. These 1.4-billion-year-old sedimentary rocks were altered by heat and pressure into the quartzites and schists that form the canyon walls. Dworshak Dam, completed in 1973, stands 717 feet high, making it one of the tallest dams in the United States. The dam creates a reservoir with 184 miles of shoreline at full pool, reaching depths over 500 feet in the former river canyon.

Climate And Weather

The park experiences a modified continental climate influenced by Pacific moisture moving through the Columbia Basin. Summers are warm with average highs around 85 degrees Fahrenheit and low humidity. Winters bring temperatures in the 20s and 30s with moderate snowfall averaging 40-50 inches annually at the park elevation. The reservoir moderates local temperatures somewhat. Spring runoff can raise reservoir levels significantly, while late summer and fall may see reduced water levels depending on dam operations. The park is accessible year-round, with peak visitation in summer.

Human History

The Nez Perce people have inhabited the Clearwater River watershed for thousands of years, utilizing the river and its tributaries for salmon fishing and as travel corridors. The Lewis and Clark Expedition descended the Clearwater River in 1805, passing through the area now beneath the reservoir. Gold discoveries in the 1860s brought miners and settlers. Logging became the primary economic activity, with the North Fork Clearwater driving millions of board feet of timber downstream. The river's characteristics made it an ideal site for a major hydroelectric and flood control project.

Park History

Dworshak Dam was authorized by Congress in 1962 and completed by the U.S. Army Corps of Engineers in 1973, creating the reservoir that now defines the park. Idaho established Dworshak State Park on lands acquired along the reservoir shoreline to provide public recreation access. The park has developed over the decades with campgrounds, boat launches, and day-use facilities. The partnership between the Corps of Engineers, which manages the dam and reservoir, and Idaho Parks and Recreation, which manages shoreline recreation, has created a successful model for reservoir-based recreation.

Major Trails And Attractions

The park's primary attractions center on Dworshak Reservoir, offering exceptional fishing for smallmouth bass and kokanee salmon. Three boat ramps provide access to the reservoir's extensive fishing and water recreation opportunities. The park features 105 campsites spread along the forested shoreline. Hiking trails include interpretive nature walks and connections to the adjacent Clearwater National Forest trail system. The Dworshak Dam Visitor Center, operated by the Corps of Engineers, offers tours and exhibits explaining dam operations and regional history.

Visitor Facilities And Travel

The park offers 105 campsites including sites with electrical hookups, full-service cabins, and a group camp area. Modern restrooms with showers serve the campground. Three boat ramps provide reservoir access, and courtesy docks facilitate launching. A day-use area includes picnic facilities and a swimming beach. The park is located 25 miles north of Orofino, Idaho, via paved roads. Orofino provides full visitor services. The nearest major airports are in Lewiston (50 miles) and Spokane (120 miles). Fuel is not available at the park; visitors should fuel boats and vehicles before arrival.

Conservation And Sustainability

Park management balances recreation with protection of the forested shoreline environment. The reservoir's fluctuating levels require flexible management of shoreline facilities. Fish and wildlife management is coordinated between Idaho Fish and Game, the Corps of Engineers, and tribal agencies to maintain healthy populations while providing recreation opportunities. Forest health monitoring addresses insect and disease concerns in the surrounding timber. The park promotes Leave No Trace principles and proper waste disposal to protect water quality in this significant reservoir system. Fire prevention is a priority in the forested environment.

Visitor Reviews

International Parks
January 16, 2026

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Frequently Asked Questions

Where is Dworshak located?

Dworshak is located in Idaho, United States at coordinates 46.5672, -116.3809.

How do I get to Dworshak?

To get to Dworshak, the nearest city is Orofino (15 mi), and the nearest major city is Lewiston (50 mi).

How large is Dworshak?

Dworshak covers approximately 3.44 square kilometers (1 square miles).

When was Dworshak established?

Dworshak was established in 1970.

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