A gorge, about 48 km (30 mi) long, of north-central Washington, carved by the Columbia River. It is fed by water from the GrandCoulee Dam.
美国华盛顿州中北部一个峡谷，长约48公里(30英里)，为哥伦比亚河冲刷形成，其水来自于大古力水坝。
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Among the projects he constructed or helped construct: the Los Angeles Aqueduct; the Oakland-San Francisco Bay Bridge; and the Hoover, Parker, Shasta and GrandCoulee DAMS.