Websites that have links to historic, digitized maps that include the Adirondacks and northern New York, compiled by John Sasso
NYS Archives Digital Collections
New York Public Library Digital Collections
Adirondack Mountains Historic Maps from Harvard University's WorldMap
USGS Historical Topographic Map Explorer
Survey maps of lands in New York State, New York (State). State Engineer and Surveyor.
Historic Maps of New York State from Stony Brook University
http://www.stonybrook.edu/libmap/nymaps.htm
http://www.stonybrook.edu/libmap/nypath2.htm
http://www.stonybrook.edu/libmap/nypath3.htm
http://www.stonybrook.edu/libmap/nypath4.htm
http://www.stonybrook.edu/libmap/nypath5.htm
Caltopo (Overlay old USGS maps)
Historical county boundaries of New York State, including a chronology of state and county boundaries, put together by The Newberry Library
http://publications.newberry.org/ahcbp/pages/New_York.html
http://publications.newberry.org/ahcbp/map/map.html#NY
http://publications.newberry.org/ahcbp/documents/NY_Consolidated_Chronology.htm#Consolidated_Chronology
http://publications.newberry.org/ahcbp/documents/NY_Individual_County_Chronologies.htm#Individual_County_Chronologies
Interactive Map of New York County Formation History Use the <prev and next> buttons to view the formation of NY counties over the years, including a brief description of the changes
