ually, though a few communities continued to be devoted almost exclusively to mining, the real wealth of Montana, Colorado, Wyoming, Idaho, and California proved to be in the grass and soil. 译文:后来,虽然少数城镇几乎专门从事采矿业,这是蒙大拿、科罗拉多、怀俄明、爱达荷等州的真正财富,加利福尼亚州的财富则证明是在草原和沃土中。