Demerara,

Demerara, one of the three counties of British Guiana (q.v.), between the Abari and the Essequibo, takes its name from the Demerara River, which rises in the Maccari Mountains, in about 4° 40' N. lat., and after a northerly course of about 200 miles, enters the Atlantic at Georgetown. The mouth is 1½ mile wide, but is obstructed by a bar at low tides; the stream is navigable for 90 miles, and has many flourishing settlements on its banks.