https://www.nhgeodata.unh.edu/datasets/two-foot-topographic-contours-great-bay-drainages-0106000309-smoothed
Two Foot Topographic Contours - Great Bay Drainages (0106000309) - smoothed
These contours connect points of equal elevation at 2-foot intervals, and are one of a suite of topographic datasets available from NH GRANIT that convey the...
great baytwofoottopographiccontours