Downriver's secret: an international wildlife refuge at the front door

The lower Detroit River holds something the U.S. Fish and Wildlife Service calls the first and only international wildlife refuge in North America. The word international needs a little explanation, though. Congress established the refuge in 2001 after U.S. and Canadian officials, conservation groups, and communities worked together on the shared river and western Lake Erie ecosystem. The designation recognizes that cooperation and the fact that wildlife crosses the border. It does not mean there is one continuous park running neatly along both countries.

The refuge is a patchwork of more than 6,200 acres in over 30 separate units. Some parcels were purchased or donated; others are managed through cooperative agreements. That shape matters when you visit because public access is different from unit to unit.

The easiest starting point is the Refuge Gateway and Humbug Marsh at 5437 West Jefferson Avenue in Trenton. The grounds and trails are generally open during daylight hours, while the John D. Dingell Jr. Visitor Center keeps a shorter weekly schedule. A 700-foot fishing pier, picnic tables, and nature trails make this the clearest front door. FWS also lists Gibraltar Bay on Grosse Ile and the Strong and Fix units in Monroe County for self-guided visits. Other refuge land may be seasonal, restricted, or closed, so check the current unit list before setting out.

The wildlife is not hidden far from the industrial riverfront. FWS points visitors toward bald eagles nesting on Detroit River islands and the fall raptor migration over the lower river. Next door in Trenton, Elizabeth Park adds another piece of the story. Wayne County calls the 162-acre park, established in 1919, Michigan’s first county park. Its riverwalk and nonmotorized boat launch can be part of the same day, but it is a county park rather than a refuge unit.