Kentucky Rail

Clip from U.S. National Transportation Atlas Railroads represents a comprehensive database of the nation's railway system at 1:100,000 scale. The data set covers the 48 contiguous States plus the District of Columbia within United States.节选自《美国国家交通地图集·铁路卷》的数据集，是一套比例尺为1:100000的美国国家铁路系统综合数据库，覆盖美国本土48州及哥伦比亚特区。