Ginkgo Petrified Forest State Park.
Contributors: Washington State Parks and Recreation Commission. Interpretive Services.
Publisher: Washington State Parks and Recreation Commission, Interpretive Services
Published: 1968
Place of publication: Olympia
Language: eng
Subjects: Parks -- Washington (State) -- Kittitas County; Petrified forests -- Washington (State) -- Kittitas County; Ginkgo Petrified Forest State Park (Wash.)