Three Rivers
Hudson~Mohawk~Schoharie
History From America's Most Famous Valleys

Van Slyke Patent.
Courtesy of Ken D. Johnson, author of the Bloodied Mohawk. The map is from the New York State Archives' Commissioners of Forfeitures Collection. Download is 191 K.

To help see the detail, the map is broken into four parts. Part one, part two, part three, part four. You will work from west to east. Print the maps, put them together and you will have a good view of the patent.