Big Rock Park erratic is a glacial erratic in the eponymous city park [Big Rock Park North] in Sammamish.
Vanderbilt Gap (mapcarta.com) Vanderbilt Gap is a mountain saddle in Kittitas, Washington and has an elevation of 2,782 feet. Vanderbilt Gap is situated nearby to the locality Umtanum, as well as near the hamlet Edgemont.