Montage of Washington State Park scenes
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Park maps/Directions at Posey Island
Simple locator map of Posey Island State Park

Driving Directions

The park is located a quarter-mile north of Pearl Island, near Roche Harbor on San Juan Island in San Juan County.

Posey Island is reachable only by boat. The closest access is at Roche Harbor Resort on San Juan Island, a half-mile south.

Park Maps

List of all downloadable Washington State Park maps.