(Oregon)
Sheridan State Scenic Corridor is a state park in the Columbia River Gorge, west of Cascade Locks, Oregon. The 11-acre (4.5 ha) property, containing an old-growth forest, is located on the south side of Interstate 84 at approximately milepoint 42.5, and was not accessible by motor vehicle since I-84 was built in 1960. However, with the opening of the Eagle Creek-Cascade Locks segment of the Historic Columbia River Highway State Trail in 1998, it has become easily accessible by foot or bicycle. The park is on a triangular lot, surrounded by I-84 and the Mount Hood National Forest. (Ref: https://en.wikipedia.org/wiki/Sheridan_State_Scenic_Corridor)