The
William G. Milliken State Park and Harbor (formerly named
Tri-Centennial State Park and Harbor) is a
state park in
Michigan, and the state's first to be situated in an urban area. Located just east of downtown
Detroit along a portion of the city's
International Riverfront, it covers on the
Detroit River, and includes a 52-slip harbor of refuge. A conical brick light-house tower marks the harbor entrance.