The colour is this river's run stage today, read off MDNR
run-timing guidance. Where along the corridor the fish are is not
modelled here — only the sixteen rivers the staging estimator covers
carry that.
Drawn 30 September 2026, north up, and it is a map of the river rather
than of the lake it runs from.
2 state boating access sites fall inside the Pentwater River corridor in MDNR's own record, 30 parking spaces between them — Pentwater Municipal and John Gurney Park. The run is 10.4 miles long and splits into the pier at river mile 0.0–1.0, the mouth at river mile 1.0–2.3 and the lower at river mile 2.3–10.4; the pier and the mouth are boat and breakwall water and the miles above them are waded. The nearest town we map is Baldwin, 28.9 miles from the corridor's midpoint in a straight line, with the water west of the town.
10.4 corridor miles · Lake Michigan · windows curated from MDNR guidance ·
page built 30 September 2026
State access sites inside the corridor
From the MDNR Boating Access Sites record, filtered to this corridor's bounding box. A ramp is
not a wade-in: these are where a boat and a car go, and the bank between them is a question for
the public land layer on the live map.
Site
Type
Parking
Notes
Pentwater Municipal
boat launchPentwater Lake
18
restroom · feeMunicipal
John Gurney Park
boat launchHart Lake
12
restroomMunicipal
Wade-in or boat, by zone
Pier — river mile 0.0–1.0
Breakwall and pier. Cast tackle and a long-handled net; no wading here.
Mouth — river mile 1.0–2.3
The harbour mouth and the first flat water. Boat and pier water, wadeable only where the river narrows above the turning basin.
Lower — river mile 2.3–10.4
The lower river — the holding water most of the run is caught in. Drift boat where it is wide enough, waded where it is not.
Zones are the corridor file's, cut on river mile. This site holds no wadeability survey, so the
note beside each zone is what the zone is and not a promise about any particular bank.
The upstream end
No barrier inside the run — the corridor runs to the end of the mainstem, and the top of the
fishery is wherever the water gets too small rather than a structure you can park at.
Nearest towns
Straight-line distance from the corridor's midpoint to the towns we map. The roads are not
mapped here, so these are not drive times.
Baldwin28.9 miles away — the water is west of it
Newaygo36.9 miles away — the water is north-west of it