Geology of Lehigh and Northampton Counties, Pennsylvania: Historical Works

Maps >> Geologic Map of Northampton County

Edition Note

This is a 1973 reprint of the 1966 redrafted and recolored edition of the original 1939 map.

SID Version

Mr.SID map (9.5 MB)

Requires the free Mr.SID® plug-in.

Flash Version

Flash-based map (7.5 MB)

Includes zoom and click-and-drag features.

Requires latest version of the free Flash™ player.

SID Map at PSU (1939 version)

PSU SID Map (11.5 MB)

Mr.SID version of the original 1939 map available from Penn State University Maps Library.

Requires the free Mr.SID plugin.

DCNR Quadrangle Maps

Click on a portion of the map below for information from DCNR about corresponding geologic quadrangle maps, including digitized map coverage when provided.

Division of map based on Map 61 D from DCNR (Pennsylvania Department of Conservation and Natural Resources).

For further information about map coverage of Lehigh and Northampton Counties, contact Pennsylvania Geological Survey or USGS