Preliminary geologic map of New York, exhibiting the structure of the state so far as known (New York City, New York)

From Digital Collections of New York Public Library
http://digitalcollections.nypl.org/items/9f56d240-60aa-0133-f7d1-00505686a51c
#NewYork #NewYorkCity #NYC #NYPL #US #USA #history #image #photo #maps #cartography