Grand Coulee
[ koo-lee ]
/ ˈku li /
noun
a dry canyon in central Washington: cut by the Columbia River in the glacial period. 52 miles (84 km) long; over 400 feet (120 meters) deep.
a dam on the Columbia River at the N end of this canyon. 550 feet (168 meters) high.
British Dictionary definitions for grand coulee
Grand Coulee
/ (ˈkuːlɪ) /
noun
a canyon in central Washington State, over 120 m (400 ft) deep, at the N end of which is situated the Grand Coulee Dam, on the Columbia River. Height of dam: 168 m (550 ft). Length of dam: 1310 m (4300 ft)