Mt Union, PA — USGS historical 15-minute topo (1924)
by USGS Historical Topo Maps (public domain) · Pennsylvania, US
A free GeoPDF for offline GPS in the Cartahaven app, with free updates. How it works offline
Try it now, no account needed
Open this map in the Cartahaven map app in your browser and see your GPS position on it.
Older edition. This is the 1924 edition from the U.S. Geological Survey. A newer one may have been published since; check the agency's page for current rules and routes before relying on it.

What you get
- Your GPS position on the map. A blue dot on this official sheet shows where you are.
- Works with no signal. Download it once; the map and your GPS position keep working with no cell signal.
- Tracks, placemarks and photos. Record where you go, drop pins, and export GPX, KML or GeoJSON.
- Free updates. When a new edition is published here, it’s yours at no cost.
- 1Tap “Get this map”: it’s added to your free account.
- 2Open the Cartahaven app on your phone and sign in.
- 3Tap “Get my maps”. It’s on your phone, ready offline.
The app runs on iPhone, Android and in desktop browsers. Install it · How offline GPS works
Where this map covers
Named places on this map
39 named features inside the Mt Union, PA — USGS historical 15-minute topo (1924) sheet, from the USGS Geographic Names Information System. Each one links to every map that shows it.
Peaks and ridges
- Big Ridge · ridge
- Big Ridge · ridge
- Bunker Hill
- Butler Knob
- Chestnut Ridge · ridge
- Gearhart Ridge · ridge
- Greenbrier Ridge · ridge
- Huling Ridge · ridge
- Irvin Hill
- Kansas Ridge · ridge
- Lick Ridge · ridge
- Long Hollow Ridge · ridge
- Mine Bank Ridge · ridge
- Miranda Hill
- Orebank Ridge · ridge
- Pine Ridge · ridge
- Renecker Ridge · ridge
- Round Top
- Saddle Back Ridge · ridge
- Sand Ridge · ridge
- Sandy Ridge · ridge
- Sandy Ridge · ridge
- Shirley Knobs
- Silver Mine Knob
and 2 more
Lakes, springs and falls
- Mount Union Reservoir · reservoir
- Singers Gap Reservoir · reservoir
Gaps, arches and other landforms
- Browns Gap · gap
- Carothers Gap · gap
- Chestnut Flat · bench
- Jacks Narrows · gap
- Little Gap · gap
- Millers Gap · gap
- Myers Gap · gap
- Old Womans Gap · gap
- Querry Gap · gap
- Singers Gap · gap
- Wharton Gap · gap
Elevations are the USGS 3DEP ground elevation at the named point, rounded; a summit's surveyed height can differ a little.
More maps of Pennsylvania.
Maps nearby
More maps around here ›
Newton Hamilton, PA
Detailed map of terrain, trails and roads
USGS topo, 2023

Mt Union, PA
Old map for history, not navigation
USGS historical 15-minute topo (1922)

Mt Union, PA
Old map for history, not navigation
USGS historical 15-minute topo (1944)

Bureau of Land Management Eastern States Overview map
BLM Eastern States (2019)

Mount Union, PA
Detailed map of terrain, trails and roads
USGS topo, 2023

Aughwick, PA
Detailed map of terrain, trails and roads
USGS topo, 2023
Version history
Version 1 · Nov 5, 2026 · 11.4 MB