Chris Izworski
Michigan public boating access

Michigan boat launches, on one map

Open the map and browse. Or search one place — a city, lake, river, harbor or launch name — and the map focuses there. Great Lakes and inland public launches are in the same tool.

Michigan DNR is the primary source. DNR launches shown here are source-reported Open. If DNR is still checking amenity data, the detail card says that in plain language.
Loading statewide launch inventory…
Launch mapEvery loaded launch is on the map; clusters open as you zoom
Green = Michigan DNR currently lists the launch Open. Violet = separately verified municipal launch. Blue = your selected launch. Local NWS weather appears in the selected launch card; it does not change statewide pin color. Map tiles © OpenStreetMap contributors / CARTO.
How the launch data and weather are handled

Michigan DNR boating-access records create the statewide inventory. The tool keeps a stable DNR source ID, published coordinate, source-reported launch status, facility-condition field and data-review state as separate concepts. A DNR “review in progress” flag means some record details are still being checked; it does not mean the launch itself is closed or unsafe. Records marked Review Needed, reference-only entries and records without usable source coordinates are withheld. Carefully documented municipal launches can fill a public-data gap only when the operator and launch location are independently supported.

  • The map never creates a launch from fuzzy matching or a guessed coordinate.
  • DNR condition values are preserved and shown only when the source actually publishes one; blank values are not turned into a rating.
  • Missing parking, ramp, fee or hours fields remain “Not listed.”
  • Driving distance is used when a destination has been searched and routing is available; otherwise distance is labeled as straight-line.
  • Local weather comes from the National Weather Service for the selected launch coordinate. It is planning context, not a statement that the ramp, lake or river is safe.

Michigan DNR boating resources · DNR source layer