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Halfmoon Lake

Washtenaw County, Michigan Inland Lake Connected Water
1 launchRec Passport required
Halfmoon Lake Access Map 1 launch
Depth Map → Click markers for details
Boat Launches on Halfmoon Lake
Halfmoon Lake Boat Launch
Pinckney State Recreation Area · Paved ramp, 1 lane, 25 trailer spots
Open Motorboat Kayak Rec Passport
View ramp details →
Connected Waterways

Halfmoon Lake is part of a chain of interconnected lakes within the Pinckney Recreation Area. The navigable waterways let boaters explore multiple lakes from a single launch point — a major draw for the area. The chain sits within the Huron River watershed in Washtenaw County.

Winter & Ice Safety

Halfmoon Lake is a smaller inland lake in southeastern Michigan and typically freezes reliably in winter. Always check current ice conditions before venturing out, as the connected waterways in the chain can create variable ice thickness.

Frequently Asked Questions
How do you access Halfmoon Lake?
Halfmoon Lake is inside the Pinckney Recreation Area, so you'll need a Michigan Recreation Passport ($16/year on your plate renewal) or a day pass to enter. The gate accepts cash or check only — no cards. There's a single-lane DNR boat launch with a dock.
Can you boat to other lakes from Halfmoon Lake?
Yes — Halfmoon Lake is part of a chain of lakes within the Pinckney Recreation Area that are connected by navigable waterways. This chain access is one of the biggest draws. Watch for submerged rocks throughout the system, as prop damage is a common issue.
What is the boat launch like at Halfmoon Lake?
It's a single-slot state DNR launch with a dock. The approach road to the ramp is rough with significant potholes. Only one boat can launch at a time, so expect waits on busy weekends. Rated 4.5 stars on Google with 48 reviews.
Can you swim in Halfmoon Lake?
Yes. The Halfmoon Lake Day Use Facility has a designated beach area within the Pinckney Recreation Area. The beach area is the cleanest spot for swimming — outside the roped section, the lake bottom gets rocky and mucky with more weeds. Canada geese are a persistent problem on the beach.
What fish are in Halfmoon Lake?
Locals report large fish in the lake, and fishing is considered good. Specific species aren't well-documented in available data, but the weedy, productive water in this part of Washtenaw County typically supports bass, bluegill, and panfish. The chain-of-lakes access expands your fishing options significantly.
Are there campgrounds near Halfmoon Lake?
Several, all within the Pinckney Recreation Area. Bruin Lake Modern Campground has full amenities, Blind Lake Campground and Crooked Lake Rustic Campground offer more basic sites, and Hell Creek Ranch Campground is nearby as well. It's a great setup for a weekend of lake-hopping and trail use.
Is Halfmoon Lake crowded?
Weekdays are usually quiet with people well-spaced out. Weekends get noticeably busier — both on the water and at the beach. The single-lane launch creates a bottleneck when traffic picks up.
Where is Halfmoon Lake in Michigan?
Halfmoon Lake is in Washtenaw County, inside the Pinckney Recreation Area in southeastern Michigan. It's roughly between Pinckney and Hell, Michigan — within easy driving distance of Ann Arbor and the greater Detroit metro area.
Scout's Notes
Lake Vibe & Fishing Intel

Halfmoon Lake sits inside the Pinckney Recreation Area in Washtenaw County — part of a chain of lakes connected by navigable waterways that makes it far more interesting than its modest size suggests. The single-lane DNR boat launch gives you access not just to Halfmoon but to additional lakes in the chain, which is the real draw here. Locals warn about submerged rocks throughout the system — prop damage is a common complaint — so run slow and watch your depth finder. The lake itself has clean water but gets weedy outside the designated beach area, with a rocky and mucky bottom in spots.

The Pinckney Recreation Area surrounds the lake, which means state park amenities — a day-use beach with a covered pavilion and grills, plus an extensive trail system for hiking and biking. You'll need a Recreation Passport or day pass to access the area (cash or check only at the gate). Weekends get crowded on the water despite the single-slot launch, and the ramp approach road has significant potholes. Canada geese are a persistent issue at the beach. Nearby campgrounds include Bruin Lake Modern Campground and Blind Lake Campground, both within the recreation area, making this a solid base for a weekend of lake-hopping.

Sources: Wikipedia, Google Reviews, DNR data, campground & beach reviews, ShorelineScout enrichment