Ontario County Historical Museum
Mapping Ontario County
"Mapping Ontario County" explores how Western New York was first surveyed
and mapped for settlers moving from New England and the Mid-Atlantic to the
area. What was the Phelps and Gorham Purchase? What were the first surveys
and how were these accomplished? Who were the surveyors? What was the
Pre-emption Line? How and when did other counties break off from the
original Ontario County? What and how were maps developed and used in the
later 19th century? Many of the oldest maps in our collection as well as
some early surveying equipment are on display.
