Dee, a Welsh and English river, issuing from Bala Lake, in Merionethshire, and flowing 90 miles NE., N., and N W. to the Irish Sea. Near Trevor it is crossed by the Ellesmere Canal, on an aqueduct 1007 feet long and 120 high; and also by the stone viaduct of the Chester and Shrewsbury Railway, of 19 arches, each 90 feet span and 150 high. At Chester, which it nearly encircles,' it is 100 yards broad; thence it runs alongside marshes in an artificial tidal canal 7 miles long, which should admit ships of 600 tons, but which is rapidly silting up. Near Connah's Quay, between Chester and Flint, where its width is 160 yards, it is crossed by the great railway swing-bridge, whose first cylinder was laid by Mr Gladstone on 16th August 1887. The Dee ends in a tidal estuary 13 miles long and 3 to 6 broad, and forming at high-water a noble arm of the sea; but at low-water a dreary waste of sand and ooze (Kingsley's ' sands of Dee'), with the river flowing through it in a narrow stream. Its chief tributaries are the Treveryn, Alwen, Ceirog, Clyweddog, and Alyn. Canals connect the Dee with the rivers of central England.

Dee

Dee, a beautiful river of Aberdeen and Kincardine shires, rising at an altitude of 4060 feet among the Cairngorm Mountains, and running 87 miles eastward, till it enters the German Ocean at Aberdeen, where in 1870-72 a mile of its channel was diverted for harbour improvements. It makes a descent of 2084 feet during the first 2| miles of its course; at the Linn of Dee, 18 miles lower down, tumbles through a chasm 300 yards long, and at one point scarcely 4 feet wide; thereafter flows by Castleton of Braemar, Balmoral Castle, and Ballater; since 1864 has supplied Aberdeen with water; and is still a good salmon river, though not what it once was. - The Kirkcudbrightshire Dee issues from Loch Dee (750 feet above sea-level), and flows 38 miles south-eastward and southward, past Threave Castle and Kirkcudbright, to Kirkcudbright Bay. Midway it is joined by the Water of Ken, 28 miles long, a stream of greater volume than its own. It, too, affords fine fishing.