Clyde Holliday State Recreation Site, State park near John Day River, Oregon.

Clyde Holliday State Recreation Site is a wooded campground between U.S. Route 26 and the John Day River, 8 miles (13 km) west of John Day near Mount Vernon. Its seasonal sites, open March 1 to November 30, accommodate tents, primitive camping, tepees and RVs, with electric hookups, hot showers, flush toilets and an RV dump station.

The park is named after Clyde Holliday, a state senator from John Day who served from 1943 to 1952 and was later a member of the Oregon Highway Commission. The state acquired the land along the John Day River and opened it as a recreation site; the campground has since been managed by the Oregon Parks and Recreation Department.

The outdoor amphitheater hosts summer programs about local wildlife and the natural features of the John Day River region. These events help visitors understand the landscape around them.

The park has over 30 electrical campsites with water hookups, hot showers, and flush toilets spread across the grounds. Visitors should book ahead during peak season and check weather conditions before arriving.

Clyde Holliday State Recreation Site lies between U.S. Route 26 and the John Day River, 8 miles (13 km) west of the city of John Day. Camping runs from March 1 to November 30 and covers tenting, primitive camping, tepees and RVs, with electric hookups, hot showers, flush toilets and an RV dump station.