(Wason Pond, 29', 2011, 29-08-m) across Wason Brook or outflow of Wason Pond NE of Chester, Chester Township, Rockingham County, NY. NH102 NE (curves E.) 2.8 miles from jct with NH121A in Chester to the bridge on the N. side of the road. (N42 58.900 W71 12.966) Photo by Dan Brock 8-17-12.