Powder horn with hand-drawn map of the Hudson River (above Albany), Mohawk River, Niagara region, and Lake Ontario in New York Province. Hudson Valley powderhorn map (1758) Date: 1758 Author: unknown Dwnld: Full Size (16.00mb) Source: Library of Congress Print Availability: See our Prints Page for more details pff This map isn't part of any series, but we have other maps of New York that you might want to check...