Notice Not affiliated with the Master Mariners Benevolent Association (MMBA) or any successor organization. v.2026.05
General Overview
Facility 🛶 Full Service Marina Est. Slips ~25 Water River Est. Parking ~30 spaces Lot Size Medium (50–150) Lot Type Surface Confidence High

Small marina on a river with clustered docks, a few buildings, and a medium-sized unpaved parking area with some vehicles near residential surroundings.

Aerial view of Marooners' Rock Marina
Great Lakes

Marooners' Rock Marina

Littlefield Township, MI

We are a small Marina in Alanson Michigan, located on Crooked River, between the Swing Bridge and the Locks.

★★★★★ 4.9 (19 reviews on Google) View on Google Maps ↗
Address 7782 Lagoon Dr, Alanson, MI 49706, USA
Capacity ~25 slips
Hours
Monday: 10:30 AM – 6:00 PM
Tuesday: 10:30 AM – 6:00 PM
Wednesday: 10:30 AM – 6:00 PM
Thursday: 10:30 AM – 6:00 PM
Friday: 10:30 AM – 6:00 PM
Saturday: 10:30 AM – 6:00 AM
Sunday: 10:30 AM – 6:00 PM
Coordinates 45.4380, -84.7847

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Marina Parking & Access Control

Marinas typically need to separate slip holder parking from day-visitor parking, trailer areas, launch ramps, and secure dock access points. Modern facilities use barrier gate systems to enforce these zones automatically — allowing permitted vehicles through via transponder or keycard while logging all access events.