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Harsens Island Michigan Map

Explore Harsens Island, Michigan, with this interactive street and satellite map.

This page also offers TOPO MAPS — the official USGS topographic sheets — plus USGS aerial imagery, a labelled USNG grid overlay, a distance and bearing tool, and a GPS grid-reference readout. See How to Use This Map below.

Interactive Map of Harsens Island, Michigan

How to Use This Harsens Island, Michigan Map

This interactive map shows the street layout and satellite imagery for Harsens Island, Michigan. Use the Map and Satellite buttons above to switch between street map and aerial imagery views. Use the + and − buttons to zoom in or out, or scroll your mouse wheel while holding the Control key to zoom. On a touchscreen, use a two-finger pinch gesture. Drag the map to pan to any area of Michigan or beyond.

Click ⛶ Fullscreen to expand the map to fill your screen. To return to the normal page view, press the Escape key, click the ✕ Exit Fullscreen button that appears above the map, or on a mobile device tap the back button (Android) or the close icon (iOS).

TOPO MAPS — NEW. Click the green 🔍 Search Maps button below the map to open a second map with a Base map row offering three choices. OSM is the standard OpenStreetMap street map. Topo shows the official USGS topographic maps from The National Map — contours, hydrography, land cover and shaded relief, the same mapping used for hiking, hunting and back-country navigation in the Adirondacks, the Catskills and the Finger Lakes. Imagery shows USGS aerial photography, mostly 1-metre NAIP. The search box finds any US town, county or landmark by name, so you are not limited to Harsens Island.

Reading the map like a paper quad. Click Grid to overlay the U.S. National Grid (USNG), labelled along the edges exactly as a printed topographic sheet is — at normal zoom the squares are one kilometre across, so you can read a six-figure grid reference by eye and judge distance directly off the map. Click Measure, then tap two points, to get the distance between them together with the grid bearing in degrees and mils, the true bearing, and the magnetic bearing to set on a compass.

Click 📍 My position to take a single GPS reading from your device. It marks where you are and reports your position as a USNG grid reference as well as plain latitude and longitude — USNG being the format FEMA and US search and rescue teams work from — with a Copy position button so you can paste it straight into a text message. It takes one reading and stops, rather than tracking continuously, to conserve your battery. Note that map tiles need cell coverage, but a GPS reading does not — your coordinates stay correct even where the map itself cannot load.

City	Harsens Island
State	Michigan (MI)
County	St. Clair County
Country	United States of America
Timezone	Eastern Time (America/Detroit)

Latitude	42.575837
Longitude	-82.594307
Population	1,600
Density	55.0 /km²
Incorporated	N/A
ZIP Code	48028
Area Code	313
County Seat	Port Huron

🌦 Goto Harsens Island Weather Page: Harsens Island, Michigan — Weather Warnings, Forecast, Radar, Satellite & Current Conditions

About Harsens Island, Michigan

Harsens Island is a locality in St. Clair County, Michigan, United States. It has a population of approximately 1,600. The population density is 55.0 people per km². Harsens Island is located at 42.5758°N, 82.5943°W. It observes the Eastern Time (America/Detroit) timezone. ZIP code: 48028.

Harsens Island sits as a low-slung expanse of silt and marsh grass, defined by the slow, deliberate movement of the Saint Clair River as it pushes toward Lake Saint Clair. It lies 10.3 miles southeast of New Baltimore, MI (from New Baltimore, MI: bearing 135°T), and is situated 3.4 miles south-southwest of Clay. This landscape belongs to the St. Clair Flats State Wildlife Area, a sprawling, protected sanctuary where the land seems to dissolve into the water, creating a labyrinth of channels and reeds that shift with the seasons. The air here holds a heavy, damp stillness, carrying the scent of decaying vegetation and the metallic clarity of the surrounding wetlands, while the light at dusk turns the horizon into a bruised purple, reflecting off the flat, expansive surface of the Saint Clair Flats.

Harsens Island maintains a quiet, insular economy rooted in the navigation of its narrow waterways and the stewardship of its natural borders. Historically, the area functioned as a waypoint for travelers moving through the interior, yet it retains a character defined more by the seasonal ebb and flow of the wildlife than by industrial ambition. Residents move with the caution of those who live on the edge of a vast, fragile basin, relying on the ferry to maintain a tether to the mainland. The presence of the St. Clair Flats State Wildlife Area ensures that the land remains largely indifferent to the frantic pace of the outside world, preserving a stillness that suggests the earth is still in the process of forming itself from the river’s persistent, alluvial deposit.

Nearby Outdoor Places

St. Clair Flats State Wildlife Area (State Conservation Area) — locality lies within
Harsens Island Hunt Club (Park) — 1.1 mi, 045° NE
Lions Field (State Recreation Area) — 1.6 mi, 063° NE
Middle Channel Country Club (Park) — 2.0 mi, 012° N
Oasis Tiki Shelter (Attraction) — 2.9 mi, 317° NW
Boat Launch (State Recreation Area) — 3.4 mi, 042° NE
St. Johns Marsh State Wildlife Area (State Conservation Area) — 3.6 mi, 355° N
Water Tower Park (Local Park) — 4.1 mi, 045° NE
Algonac City Park (Local Park) — 4.1 mi, 049° NE
Algonac Boat Anchor (Monument) — 4.1 mi, 049° NE
Tecumseh Monument (Monument) — 4.4 mi, 061° NE
Algonac Veteran's Memorial (Monument) — 4.5 mi, 047° NE
Gull Island Sandbar (Attraction) — 5.4 mi, 234° SW
Algonac State Park (State Park) — 5.5 mi, 028° NE
Brandenburg Park (State Park) — 10.4 mi, 307° NW
The Mariner LLC (Gallery) — 10.9 mi, 028° NE
The Snug Theatre (Theatre) — 11.1 mi, 028° NE
NIKE Hercules Missile (Attraction) — 12.5 mi, 287° W
WWII Cannon (Attraction) — 12.5 mi, 287° W
John R. Armstrong Performing Arts Center (Theatre) — 13.8 mi, 283° W
Gratiot Valley Railroad Club (Museum) — 14.7 mi, 279° W
The Baumgartner House Museum And Fraser Depot Visitor Center (Museum) — 17.3 mi, 260° W
MJR Partridge Creek Digital Cinema 14 (Cinema) — 18.2 mi, 281° W
Grindstone (Public Artwork) — 18.5 mi, 266° W
Cook Schoolhouse (Museum) — 18.9 mi, 239° SW
Alger Theater (Cinema) — 21.1 mi, 236° SW
Sled Museum (Museum) — 23.8 mi, 015° N
Burgess Overlook (Viewpoint) — 24.6 mi, 282° W
Detroit River International Wildlife Refuge (National Wildlife Refuge) — 36.0 mi, 230° SW · 13k acres
Sanilac Shores Great Lakes State Underwater Preserve (Marine Protected Area) — 47.0 mi, 004° N

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