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Great Mills Maryland Map

Explore Great Mills, Maryland, 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 Great Mills, Maryland

How to Use This Great Mills, Maryland Map

This interactive map shows the street layout and satellite imagery for Great Mills, Maryland. 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 Maryland 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 Great Mills.

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	Great Mills
State	Maryland (MD)
County	St. Mary's County
Country	United States of America
Timezone	Eastern Time (America/New_York)

Latitude	38.236792
Longitude	-76.497176
Population	8,000
Density	480.0 /km²
Incorporated	N/A
ZIP Codes	20653, 20634
Area Code	301, 240
County Seat	Leonardtown

🌦 Goto Great Mills Weather Page: Great Mills, Maryland — Weather Warnings, Forecast, Radar, Satellite & Current Conditions

About Great Mills, Maryland

Great Mills is a locality in St. Mary's County, Maryland, United States. It has a population of approximately 8,000. The population density is 480.0 people per km². Great Mills is located at 38.2368°N, 76.4972°W. It observes the Eastern Time (America/New_York) timezone. ZIP codes: 20653, 20634.

Great Mills rests upon a landscape defined by the steady, persistent flow of the Saint Marys River as it carves through the quiet interior of the region. It lies 3.1 miles southwest of Lexington Park, MD (from Lexington Park, MD: bearing 229°T), and is situated 4.4 miles south of California.

The presence of the river provides a rhythmic pulse to the land, while the nearby Carthagena Flats offer a broad, expansive contrast to the wooded thickets. Only two miles distant, Saint Marys Lake serves as a reflective mirror for the shifting clouds, its stillness a stark departure from the wandering currents of the riverbed. Travelers moving toward the horizon might occasionally discern the distant silhouette of Edgars Ridge, a faint mark against the sky that anchors the perspective of the observer. Great Mills remains defined by this inland geography, where the air holds a heavy, quiet stillness at dusk, undisturbed by the chaotic movement of the world beyond. A short distance away, the quiet grounds of James W. Henderson Park offer a space for the earth to breathe, where the soil remains soft and yielding under the weight of the seasons.

Early settlers favored this location for its fertile potential, establishing a foundation that has evolved alongside the shifting demands of the regional economy. Agriculture originally dictated the pace of life, though the modern industry of Great Mills is now inextricably linked to the technical and professional sectors that drive the broader area. The transition from field to laboratory has altered the rhythm of the day, yet the underlying ambition of the workers remains as steady as the flow of the Saint Marys River. Local businesses support this specialized workforce, creating a self-sustaining cycle of innovation and service that defines the character of the modern landscape. The economy thrives on a quiet, disciplined intensity, where the labor of the day is measured by the progress of complex projects rather than the harvest of a crop.

Great Mills maintains a distinct cultural identity, one shaped by a convergence of traditional roots and a forward-looking professional presence. Notable landmarks, such as the historic school buildings that once defined the educational landscape, stand as reminders of the community's commitment to growth and intellectual pursuit. Local events often center around the school calendar, reinforcing a culture that prioritizes family and the continuity of local knowledge. While no singular, world-famous luminary claims this exact soil as their birthplace, the character of the people is marked by a pragmatic grace and a deep, unspoken respect for their surroundings. The atmosphere of the place is one of deliberate focus, where the passage of time is marked by the changing colors of the trees and the quiet, persistent diligence of those who call the place home.

Nearby Outdoor Places

James W. Henderson Park (Local Park) — 0.8 mi, 045° NE
Open Space (Local Park) — 1.3 mi, 300° NW
Chancellors Run Regional Park (State Recreation Area) — 1.9 mi, 003° N
St Marys River Sp (State Park) — 2.1 mi, 299° NW
Salem State Forest (State Resource Management Area) — 2.8 mi, 306° NW
African American Monument (Monument) — 3.2 mi, 052° NE
Church Point (Viewpoint) — 4.7 mi, 136° SE
Drayden African-American Schoolhouse (Museum) — 4.7 mi, 170° S
Freedom of Conscience (Monument) — 4.8 mi, 133° SE
The Maryland Dove (Museum) — 4.9 mi, 136° SE
Margaret Brent Pilgrimage (Monument) — 5.0 mi, 134° SE
Piney Point Aquaculture Center (State Conservation Area) — 5.1 mi, 195° S
Historic St. Mary's City Visitors Center (Museum) — 5.3 mi, 137° SE
Lighthouse (Public Artwork) — 6.4 mi, 183° S
J.C. Lore Oyster House (Museum) — 6.4 mi, 018° N
St Inigoes Sf (State Resource Management Area) — 7.7 mi, 147° SE
Greenwell Sp (State Park) — 8.5 mi, 347° N
Mcintosh Run Wma (State Conservation Area) — 9.4 mi, 310° NW
Smith's St. Leonard Site (Historic Ruins) — 10.7 mi, 357° N
Indian Village (Historic Ruins) — 11.3 mi, 356° N
Blackwater National Wildlife Refuge (National Wildlife Refuge) — 14.5 mi, 060° NE · 96k acres
Kocen Arts Center (Arts Centre) — 21.2 mi, 347° N
Calvart Gallery (Gallery) — 21.2 mi, 347° N
Creative Celebrations (Arts Centre) — 22.3 mi, 347° N
George Washington Birthplace National Monument (National Monument) — 22.3 mi, 262° W · 556 acres
Rappahannock River Valley National Wildlife Refuge (National Wildlife Refuge) — 23.5 mi, 226° SW · 24k acres
Eagle Nest (Attraction) — 26.2 mi, 058° NE
Spocott Windmill (Attraction) — 29.7 mi, 035° NE
Reedville Fishermen's Museum (Museum) — 29.7 mi, 156° SE
Half Shell Stage (Theatre) — 36.6 mi, 170° S

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