Explore Mount Union, Pennsylvania, 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.
This interactive map shows the street layout and satellite imagery for Mount Union, Pennsylvania. 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 Pennsylvania 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 Mount Union.
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 | Mount Union |
| State | Pennsylvania (PA) |
| County | Franklin County |
| Country | United States of America |
| Timezone | Eastern Time (America/New_York) |
| Latitude | 40.384079 |
| Longitude | -77.88152 |
| Population | 2,308 |
| Density | 768.9 /km² |
| Incorporated | Yes |
| ZIP Codes | 17222, 17066 |
| Area Code | 215, 223, 267, 272, 412, 445, 484, 570, 582, 610, 717, 724, 814, 835, 878 |
| County Seat | Chambersburg |
| School District | Mount Union Area School District |
Mount Union anchors itself firmly upon the shifting terrain of the Pennsylvania ridge-and-valley landscape, where the earth rises in long, deliberate folds toward the distant, hazy blue of the Blue Ridge Mountains. It lies 8.7 miles east-southeast of Chambersburg, PA (from Chambersburg, PA: bearing 105°T), and is situated 2.5 miles east of Fayetteville. The air here holds the cooling influence of the nearby Mont Alto State Forest, its dense canopy tempering the heat of mid-summer afternoons and casting long, indigo shadows across the limestone floor of the valley. Water defines the edges of the local experience, most notably where the Conococheague Creek carves a persistent, winding path through the soil, offering a steady hum of movement that contrasts with the stillness of the Caledonia Water Company Pond nearby. When the light strikes the slopes of Dark Hollow at dusk, the entire geography seems to glow with a muted, earthen amber, revealing the quiet patience of a land shaped by ancient, tectonic pressure and the slow accumulation of river silt.
Mount Union maintains the remnants of an industrial character that once thrived on the movement of raw materials and the sweat of regional labor, echoing the persistent, grit-filled legacy of the broader Pennsylvania interior. The rhythm of daily life follows the legacy of rail and kiln, where the physical remains of bygone commerce still lean against the newer, quieter pulse of the present. Residents often find their way toward the paths of the Lippencot Trail, which offers a quiet passage through the natural heritage preserved within the grounds of Caledonia State Park. This intersection of historic labor and protected wilderness creates a distinct atmosphere, one where the legacy of hard-wrought production meets the enduring silence of the woods. Mount Union persists not as a relic, but as a place where the deliberate, heavy work of the past has settled into a steady, unadorned peace.
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This page provides an embedded street and satellite map of Mount Union, Pennsylvania. Coordinates: 40.384079, -77.88152. Live weather conditions are sourced directly from the National Weather Service. Real-time local and world news feeds keep the page current.
Detailed location data for Mount Union includes the ZIP code (17222, 17066), telephone area code (215, 223, 267, 272, 412, 445, 484, 570, 582, 610, 717, 724, 814, 835, 878), county seat of Franklin County (Chambersburg), and school district assignment (Mount Union Area School District).
Search Maps opens a second, independent map. It searches OpenStreetMap for any US town, county or landmark by name; offers USGS topographic maps and USGS aerial imagery as base layers; overlays a labelled U.S. National Grid (USNG) so the map can be read like a printed topographic quad; measures distance and grid, true and magnetic bearings between any two points; and takes a single GPS fix reporting your position as a USNG grid reference and as latitude and longitude. Map tiles require cell coverage, but a GPS position does not, so the coordinates remain correct even where the map cannot load.
Location data is drawn from the USGS Geographic Names Information System (GNIS) and cross-verified against 2020 US Census records by coordinate proximity. Population figures are sourced from the 2020 US Census.
| Page generated | September 2026 |
| Location data | SimpleMaps US Cities Database; coordinates matched to USGS GNIS definitive data |
| Map layers | Google Maps; © OpenStreetMap contributors; USGS The National Map topographic and aerial imagery (public domain); magnetic declination from NOAA NCEI (World Magnetic Model) |
| Wikipedia validation | Article content matched to USGS GNIS coordinates via Wikipedia geosearch API. |