Monticello Dam is a dam in Napa County, California, United States constructed between 1953 and 1957. It is a medium concrete-arch dam with a structural height of 304 ft (93 m) and a crest length of 1,023 ft (312 m). A glory hole is used when a dam is at full capacity and water needs to be drained from the resevoir. + _' I; Y3 o5 P3 A: Z- o5 Z w: R7 e! B6 I
这是Monticello 水坝用来排水的大洞,很神奇! * g: Q- `1 x% r; u1 a5 t l( z! c ^7 @7 t Q
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