Last Glacial Period River, which in turn was formed during an earlier glacial period. In its retreat, the Wisconsin Episode glaciation left terminal moraines that form Long Island, Block Island, Cape Cod, Nomans Land, Martha's Vineyard, Nantucket, Sable Island, and the Oak Ridges Moraine in south central Ontario, Canada. In Wisconsin itself, it left the Kettle Moraine. The drumlins and eskers formed at its melting edge are landmarks of the Lower Connecticut River Valley. In the Sierra Nevada, there are three named stages of glacial maxima (sometimes incorrectly called ice ages) separated by warmer periods. These glacial maxima are called, from oldest to
Noon Hill (reservation) including land owned by the town of Medfield and The Trustees of Reservations' Shattuck Reservation located to the northwest of Noon Hill along the Charles River. The rugged, rocky terrain of Noon Hill was formed via glacial action during the last ice age through glacial plucking and scouring. Holt Pond, the dammed flow of Sawmill Brook, was constructed circa 1764 to service colonial era mills. Other parts of the property were used as pasture land. Noon Hill was acquired in 1959 as a gift of W. K. Gilmore & Sons; additional land was given by other donors in 1960, 1963,