Allentown, PA — USGS historical 15-minute topo (1939)
by USGS Historical Topo Maps (public domain) · Pennsylvania, US
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Older edition. This is the 1939 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.

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Where this map covers
Named places on this map
52 named features inside the Allentown, PA — USGS historical 15-minute topo (1939) sheet, from the USGS Geographic Names Information System. Each one links to every map that shows it.
Peaks and ridges
- Applebutter Hill
- Bauer Rock · pillar
- Bitts Hill
- Camelhump
- Chestnut Hill
- Christines Hill
- Church Hill
- Cressman Hill
- Dutch Hill
- Flint Hill
- Focht Hill
- Gaffney Hill
- Granite Hill
- Green Hill
- Holiday Hill
- Kirchberg
- Klein Hill
- Kohlberg
- Lehigh Mountain
- Limeport Hill
- Molasses Hill
- Pektor Hill
- Pinetop
- Saucon Hill
and 3 more
Lakes, springs and falls
- Campbell Pond · lake
- Catasauqua Lake · lake
- Cheesebrough Pond · reservoir
- Crystal Spring · spring
- Fifteenth Street Spring · spring
- Green Pond · lake
- Helfrichs Spring · spring
- Hellertown Reservoir · reservoir
- Lake Thomas · lake
- Lehigh Park Spring · spring
- Marlin Lake · lake
- Miller Slate Pond · reservoir
- Moyers Lake · lake
- Penn-Dixie Pond · reservoir
- Saucona Pond · lake
- South Mountain Reservoir · reservoir
Gaps, arches and other landforms
- Adams Island · island
- Calypso Island · island
- Eves Island · island
- Jasper Cliffs · cliff
- Kline Island · island
- Laubach Island · island
- Leiberts Gap · gap
- Saucon Gap · gap
- Turkey Island · island
Elevations are the USGS 3DEP ground elevation at the named point, rounded; a summit's surveyed height can differ a little.
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Version history
Version 1 · Nov 5, 2026 · 9.1 MB