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Marriottsville Maryland Map

Explore Marriottsville, 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 Marriottsville, Maryland

How to Use This Marriottsville, Maryland Map

This interactive map shows the street layout and satellite imagery for Marriottsville, 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 Marriottsville.

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	Marriottsville
State	Maryland (MD)
County	Howard County
Country	United States of America
Timezone	Eastern Time (America/New_York)

Latitude	39.350105
Longitude	-76.899421
Population	4,200
Density	120.0 /km²
Incorporated	N/A
ZIP Code	21104
Area Code	240, 301
County Seat	Ellicott City

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

About Marriottsville, Maryland

Marriottsville is a locality in Howard County, Maryland, United States. It has a population of approximately 4,200. The population density is 120.0 people per km². Marriottsville is located at 39.3501°N, 76.8994°W. It observes the Eastern Time (America/New_York) timezone. ZIP code: 21104.

Marriottsville unfolds across a landscape of heavy timber and broken stone, where the South Branch Patapsco River carves a deliberate, winding path through the dense, verdant terrain. It lies 4.6 miles southeast of Eldersburg, MD (from Eldersburg, MD: bearing 144°T), and is situated 5.6 miles northeast of Howard. The air here holds a particular weight, thick with the scent of damp loam and the cool breath of the forest floor, while the light at dusk bleeds a bruised violet hue over the uneven earth. To the west, the distant silhouettes of the Blue Ridge Mountains frame the horizon, a constant, hazy reminder of the vast, interior expanse that separates these woods from the distant, unseen coast. Within a mile of the river’s edge, the sprawling acreage of Patapsco Valley Sp provides a quiet sanctuary where the undergrowth thrives in the shadow of hardwoods, indifferent to the encroaching sprawl of the modern world.

Marriottsville retains the stubborn, utilitarian spirit of its origins, born from a history of milling and the slow, grinding labor of the nineteenth-century industrial frontier. The economy has long since shifted away from the water-powered enterprises that once defined the riverbanks, yet the legacy of those stone foundations remains, buried in the silt or reclaimed by the creeping ivy of Sylvan Dell Valley. Life here moves with the deliberate pace of the seasons, far removed from the frantic commerce of the city, favoring instead the solitude of the interior landscape and the preservation of a rural character that persists despite the changing times. Even the proximity of Piney Run Lake, a few miles distant, speaks to a geography defined by quiet, inland waters and the steady, unobserved rhythm of a place that keeps its own counsel.

Nearby Outdoor Places

Patapsco Valley Sp (State Park) — 0.6 mi, 280° W
Patapsco Valley State Park (State Park) — 0.6 mi, 280° W
McKeldin Falls (Viewpoint) — 0.7 mi, 084° E
Henryton School of Practical Nursing (Monument) — 0.9 mi, 298° NW
Granite National Historic District (Monument) — 2.8 mi, 099° E
Hugg-Thomas Wma (State Conservation Area) — 3.6 mi, 272° W
Sykesville Middle School (Local Recreation) — 3.9 mi, 296° NW
Hugg-Thomas Wildlife Management Area (State Conservation Area) — 4.1 mi, 282° W
Lp5014 (Local Park) — 4.4 mi, 232° SW
Piney Run Park (Local Park) — 4.7 mi, 304° NW
Dogwood Wall (Attraction) — 6.1 mi, 113° SE
Ellicotts Upper Mills (Monument) — 6.3 mi, 116° SE
Meadows Road Bridge (Historic Ruins) — 6.5 mi, 057° NE
Linton Springs Elementary / Century High School (Local Recreation) — 6.8 mi, 318° NW
Main Street Ballroom (Attraction) — 7.8 mi, 137° SE
Mentzel Paper Mill (Historic Ruins) — 7.9 mi, 133° SE
"family" Statue (Public Artwork) — 9.1 mi, 171° S
Howard County Center of African American Culture (Museum) — 9.1 mi, 165° S
Irvine Nature Center Native American Site (Attraction) — 9.4 mi, 053° NE
Barry Johnston, Sculptor (Arts Centre) — 10.7 mi, 103° E
Dickeyville Historic District (Attraction) — 10.7 mi, 103° E
Columbia Art Center (Gallery) — 10.9 mi, 156° SE
R/C Hollywood Cinema 4 (Cinema) — 13.1 mi, 123° SE
Baltimore Clayworks (Gallery) — 13.2 mi, 084° E
Amaranthine Museum (Museum) — 13.6 mi, 095° E
African Journey (Nature Reserve) — 13.7 mi, 097° E
Fort McHenry National Monument and Historic Shrine (National Monument) — 17.9 mi, 109° E · 47 acres
Patuxent Research Refuge (National Wildlife Refuge) — 18.5 mi, 164° S · 26k acres
George Washington Memorial Parkway (National Park) — 29.8 mi, 206° SW · 2,795 acres
Appalachian National Scenic Trail (National Trail) — 39.4 mi, 300° NW · 110k acres

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