A ferry terminal on the north shore of Admiralty Bay at the east end of Crocketts Lake. Fort Casey State Park is on the bluff above Keystone. The present name for the terminal, without particular significance, was chosen when the boom town of New Chicago faded in the 1893 panic. That town, on the site of Keystone, was to have been the western terminus of Chicago & Skagit Valley Railroad, with an eastern terminus at Sedro Wooley.