National Waterway Network Nodes
收藏US Department of Transportation Open Data Portal2026-02-06 更新2026-03-28 收录
下载链接：
https://data-usdot.opendata.arcgis.com/maps/5bc82e3026354c9d92cbb551b3b2e2d2
下载链接
链接失效反馈官方服务：
资源简介：
The National Waterway Network (NWN) is a geographic database of navigable waterways and channels in and around the United States, for analytical studies of navigation performance, for compiling commodity flow statistics, and for mapping purposes.
创建时间：
2022-08-26
