Today we have the scanned USGS datasheets (15′ topo quads) for New York! Big thanks to Jeff Jalbrzikowski of NGS, who sent me the files.
Coverage of the state is nearly complete; Neversink is the only quad that wasn’t available.
There are some very interesting datasheets in this collection. For example, check out the marks on the Statue of Liberty’s pedestal (New Brunswick quad, page 11). And West Point contains some really interesting history and diagrams from the U.S. Military Academy.
View New York quads here: USGS Datasheets: New York
(Or view a standalone version of the map.)