|These are historic USGS topographic maps, at the website of the Dimond Library of the University of New Hampshire, part of their collection of old maps of New England states. The view of these is much more detailed than what you can see on the above link to the current topo map. There is no one year for which all the quadrangles showing Plymouth are available, so I have linked to the oldest available survey of each. At their website, you can browse maps of these same quadrangles from other years, as well as maps of neighboring towns.|
Woodstock SW (surveyed 1910-11) shows a large area of Plymouth, including the Union, the Notch, and Five Corners; Pinney Hollow and Hale Hollow, as well as parts of neighboring Reading to the east, and Bridgewater to the north.
Rutland SE (surveyed 1888-9 & '91) shows a sliver of the west of Plymouth, including Plymouth Pond and Black Pond, Salt Ash Mt, and part of Great Roaring Brook, as well as neighboring Shrewsbury to the west.
Wallingford NE (surveyed 1888-9 & '91) shows a small bit of the southwest corner of Plymouth, including a bit of Ninevah Road, as well as neighboring Mt Holly to the south, and a bit of Shrewsbury to the west
Ludlow NW (surveyed 1928-9) shows the southeast corner of Plymouth, including Tyson, Plymouth Kingdom, Echo Lake, Reading Pond Brook, and Patch Brook, as well as parts of neighboring Reading to the east, Ludlow to the south, and Cavendish to the southeast.