A colorful and comprehensive map of the state prepared to accompany a report on the "Mineral Exhibit of New York at the World's Colombian Exposition." Map by Frederich J.H. Merrill, Director of the New York State Museum. The geology of the map was based on an Agricultural and Geological report of 1844 with additions and corrections from numerous sources that are listed in a table. One legend explains symbols used to show the locations of water resources, gas and oil fields, clay deposits and stone quarries, etc. Another legend identifies 25 different geologic types.

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Condition: A

A colorful example with a few short splits at fold intersections and a hint of toning along a few folds. Issued folding.