Upstate New York treaties drawn up after the war ceded much of the land to settlers of European descent. It is largely rural with rugged terrain. The development of Upstate New York was spurred by the opening of the Erie Canal in 1825, which greatly eased the transport of goods between the port of New York City and inland cities along the Great Lakes. As a result, Upstate became a hotbed for manufacturing, giving birth to such firms as General Electric, IBM, Kodak, and Xerox, and it welcomed a large influx of immigrants. Since the mid 20th century, American de-industrialization has contributed to
Teltow Canal Berlin's eastern suburbs. The Dahme provides a link to the Oder-Spree Canal, and hence to the River Oder and Poland. Whilst the Dahme is a tributary of the River Spree, itself a navigable tributary of the Havel, the Teltow Canal offers the advantage of bypassing the centre of Berlin, with its heavy river traffic. At its western end, the Teltow Canal incorporates the Griebnitzsee lake which links to the Havel in Potsdam. The Griebnitz Canal provides a second link to the Havel from the eastern end of the Griebnitzsee. Towards its eastern end, the Teltow Canal is linked to the