Топографическая карта Dedham

Название: Топографическая карта Dedham, высота, рельеф.

Местонахождение: Dedham, Norfolk County, Massachusetts, United States (42.20922 -71.23172 42.28046 -71.13075)

Средняя высота: 43 м

Минимальная высота: -24 м

Максимальная высота: 100 м

The first man-made canal in North America, Mother Brook, was created in Dedham in 1639. It linked the Charles River to the Neponset River. Although both are slow-moving rivers, they are at different elevations. The difference in elevation made the canal's current swift enough to power several local mills.