Kitsap County is a forested glacial till plain and a peninsular area located in the center of Puget Sound to the immediate west of Seattle. Two prominent land forms, the Kitsap Peninsula and Bainbridge Island, make up this maritime county of inlets and islands. Kitsap County, name for Native-American Chief Kitsap (meaning "brave"), was created by the Territorial Legislature on January 16, 1857.