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Byrnes Mill Missouri Map

Explore Byrnes Mill, Missouri, 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 Byrnes Mill, Missouri

How to Use This Byrnes Mill, Missouri Map

This interactive map shows the street layout and satellite imagery for Byrnes Mill, Missouri. 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 Missouri 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 Byrnes Mill.

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	Byrnes Mill
State	Missouri (MO)
County	Jefferson County
Country	United States of America
Timezone	Central Time (America/Chicago)

Latitude	38.437832
Longitude	-90.581792
Population	3,173
Density	239.0 /km²
Incorporated	Yes
ZIP Codes	63051, 63025
Area Code	314
County Seat	Hillsboro
School District	Northwest R-I School District

🌦 Goto Byrnes Mill Weather Page: Byrnes Mill, Missouri — Weather Warnings, Forecast, Radar, Satellite & Current Conditions

About Byrnes Mill, Missouri

Byrnes Mill is a locality in Jefferson County, Missouri, United States. It has a population of approximately 3,173. The population density is 239.0 people per km². Byrnes Mill is located at 38.4378°N, 90.5818°W. It observes the Central Time (America/Chicago) timezone. Byrnes Mill is an incorporated locality. ZIP codes: 63051, 63025.

Byrnes Mill occupies a verdant stretch of land defined by the persistent, rhythmic flow of the Big River as it carves through the limestone foundations of the region. It lies 5.1 miles south-southeast of Eureka, MO (from Eureka, MO: bearing 151°T), and is situated 6.3 miles southwest of Murphy. The landscape here is characterized by dense woodlands and uneven terrain that rises toward the distant, hazy silhouette of the Crescent Hills. Within the quiet boundaries of Byrnes Mill Park, the air holds a heavy, damp sweetness after a rain, smelling of moss and damp earth, while the light at dusk settles in long, amber slats across the forest canopy. A mile away, the surface of Lake Montowese remains a calm, reflective mirror, offering a stillness that contrasts with the constant, low-frequency hum of the moving river water nearby.

Industry and settlement in Byrnes Mill remain tied to the historical legacy of the milling operations that once harnessed the power of the local waterways to drive the regional economy. Long ago, the necessity of processing grain shaped the development of the area, leaving behind a quiet, practical character that persists in the pace of daily life today. Residents maintain a plain-spoken connection to the land, influenced by the slow, deliberate work of seasonal shifts that define the Missouri calendar. While the echoes of early frontier enterprise have softened, the community retains a sturdy, unassuming identity, far removed from the sprawl of urban centers but deeply connected to the topography of the woods and the persistent, wandering path of the Big River.

Nearby Outdoor Places

Byrnes Mill Park (Local Park) — 0.0 mi, 301° NW
Rockford Beach County Park (Local Park) — 1.1 mi, 217° SW
Nw Athletic Association Sports Fields (Local Recreation) — 3.2 mi, 153° SE
Young Conservation Area (State Conservation Area) — 3.5 mi, 272° W
Route 66 State Park (State Park) — 4.5 mi, 353° N
Allenton Access (State Recreation Area) — 4.8 mi, 299° NW
Forest 44 Conservation Area (State Conservation Area) — 5.1 mi, 016° N
Wolf Sanctuary (Zoo / Wildlife Park) — 6.4 mi, 011° N
Castlewood State Park (State Park) — 6.8 mi, 007° N
Old Foundation (Historic Ruins) — 6.8 mi, 003° N
Elk Hollow (Viewpoint) — 6.9 mi, 019° N
Typhoon Twister (Attraction) — 7.0 mi, 317° NW
Tornado (Attraction) — 7.1 mi, 316° NW
Hotel Ruins (Historic Ruins) — 7.1 mi, 354° N
Gulley Washer Creek (Attraction) — 7.1 mi, 317° NW
Wahoo Racer (Attraction) — 7.1 mi, 317° NW
World Bird Sanctuary (Zoo / Wildlife Park) — 7.2 mi, 021° N
Frisco Hill Stone (Monument) — 7.7 mi, 118° SE
Battle of Pacific (Registered Battlefield) — 9.3 mi, 290° W
Heroes Memorial (Monument) — 9.9 mi, 052° NE
B&B Theaters Wildwood (Cinema) — 10.2 mi, 345° N
B&B Wildwood 10 Theatre (Cinema) — 10.2 mi, 345° N
Wildwood History Museum (Museum) — 10.3 mi, 318° NW
Pond Stone (Monument) — 10.7 mi, 338° N
Donut No. 3 (Public Artwork) — 11.5 mi, 050° NE
Myseum (Museum) — 13.4 mi, 015° N
Middle Mississippi River National Wildlife Refuge (National Wildlife Refuge) — 15.7 mi, 129° SE · 16k acres
Big Muddy National Fish And Wildlife Refuge (National Wildlife Refuge) — 17.0 mi, 355° N · 32k acres
Gateway Arch National Park (National Park) — 24.7 mi, 059° NE · 85 acres
Mark Twain National Forest (National Forest) — 36.2 mi, 199° S · 1.5M acres

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