A historic collection of geological maps of New Jersey done by George H. Cook in the late 19th Century. These maps are the result of the official surveys of New Jersey. These maps are labeled "edition of 1891 : John C. Smock, State Geologist". T
These historical topographic manuscript maps were completed by Topographic Engineer C.C. Vermeule from around 1870 to 1887 at a scale of 1 to 21,120 (3 inches equal one mile). From the NJDEP - NJGS.