An arid region of southern California southeast of the Sierra Nevada. Once part of an ancient inland sea, the desert was formed by volcanic action and by materials deposited by the Colorado River.莫哈韦沙漠:加利福尼亚南部的干燥地区,在谢拉内华达山东南部。曾是一个古内陆海的一部分,该沙漠是由火山活动及科罗拉多河沉淀的物质形成的