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Welcome to MRBIS

There are over 1,300 public boating access sites and over 80 harbors and marinas throughout the State of Michigan administered by State, county, and local units of government. This website gives you the ability to locate and map boating access sites, harbors, and marinas for your next boating adventure!

Question of the Day

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Loon Alert!


Boaters should stay 150 yards or more from loons. Boating too near loons may cause them to abandon their nest or young. You can help conserve loons by enjoying them from a distance.

Play alarm call of the common loon by hovering over the sound icon:

Content on this page used by permission. Copyright © 2010 Kalkomey, Inc. Learn more about boating safety by taking the Boat Michigan online course. (Link Boat Michigan online course to

Get Started with a Search

MRBIS Place Search

Search for a Boating Access Site by a known place or within a location (for instance Ingham County) or even within a proximity of a location (i.e. 50 mile radius from a personal address) with the additional parameters available under the "Advanced Settings" link!

Business (ex: fishing shop), address (ex: 111 E Main St, Lansing), or landmark (ex: capitol building)

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