Keystone, Island County, Washington

{{Short description|Unincorporated community in Washington, US}}

{{Use mdy dates|date=July 2023}}

{{Coord|48|09|50|N|122|37|50|W|type:city|display=title}}

Keystone is a small unincorporated community on Whidbey Island in Island County, Washington, in the northwestern United States.{{cite gnis|id=1511914|name=Keystone}} It is near the Keystone ferry landing, a dock at Keystone Harbor for the Washington State Ferries' Coupeville to Port Townsend route. The route provides a maritime link for State Route 20 across Admiralty Inlet to the Olympic Peninsula. Since its establishment in the 1930s,{{cn|date=September 2023}} the ferry route to Port Townsend was known as the Keystone-Port Townsend Ferry; the name was changed in 2010 at the suggestion of the Central Whidbey Chamber of Commerce in order to avoid confusion from tourists and visitors to Whidbey Island.{{cite web | url=https://www.peninsuladailynews.com/news/ferry-route-name-change-now-official-its-port-townsend-coupeville/ | title=Ferry route name change now official; it's Port Townsend-Coupeville | date=August 22, 2010 }}

Keystone is located about four miles south of Coupeville, next to Fort Casey State Park, Camp Casey, and is two miles from Ebey's Prairie National Historic Preserve. There is a residential area and farms in Keystone, including the historic Crockett Barn located next to the Crockett Blockhouse and Crockett Lake. Currently, the only business in Keystone is Callen's Restaurant,[https://www.callensrestaurant.com/ Callen's Restaurant] located directly across Highway 20 from the ferry landing and boat launch parking area.