Historical Transportation of Navigable Rivers, Canals, and Railroads in the United States
收藏ICPSR2016-01-01 更新2026-04-16 收录
下载链接：
http://www.icpsr.umich.edu/icpsrweb/ICPSR/studies/36353
下载链接
链接失效反馈官方服务：
资源简介：
This collection contains GIS materials which cover the spread of different modes of transportation in the lower 48 states from America's founding through (approximately) 1911. There are three transportation modes included in this collection: canals, steamboat-navigated (as opposed to simply navigable) rivers, and railroads.
The GIS materials can be downloaded by accessing the "Other" link.
提供机构：
Vanderbilt University
创建时间：
2016-01-01
