that was constructed shortly after the Chautauqua Road. What is now NY 242 west of Little Valley was originally part of NY 17A, an alternate route of NY 17 between Randolph and Salamanca that was assigned in the mid-1920s. Between Little Valley and Salamanca, NY 17A overlapped with NY 18 on modern NY 353. In the 1930 renumbering of state highways in New York, NY 17A was renumbered to NY 17H while NY 242 was assigned to a new roadway under construction between Little Valley and Ellicottville. The NY 242 designation also continued northeast of Ellicottville to Machias as it does today; however, it initially followed what is now NY 240 and County Route 16 between Ashford and Machias. It was rerouted by the following year to follow its current alignment between Ashford and Machias. The NY 17H designation ceased to exist . The former routing of NY 17H west of Little Valley became an extension of NY 242 while the remainder of the route remained part of NY 18. Major intersections See also References External links 242 Transportation in Cattaraugus County, New York