USA Railroads

This layer presents a comprehensive database of the nation's railway system at 1:100,000 scale. The dataset covers the 48 conterminous states plus the District of Columbia within the United States. To download the data for this layer as a layer package for use in ArcGIS desktop applications, refer to USA Railroads.本图层提供了比例尺为1:10万的全美铁路系统综合数据库。该数据集覆盖美国本土48州及哥伦比亚特区。若需下载本图层数据并获取可用于ArcGIS桌面应用的图层包（layer package），请参阅USA Railroads。