IENC Distance Marks 2025
收藏USACE GIS Open Data Portal2026-05-16 收录
下载链接：
https://geospatial-usace.opendata.arcgis.com/maps/a6776c75be9b4154885516e7598ebb50
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资源简介：
<p><span style='font-family:"Arial",sans-serif; color:#4C4C4C; background:white;'>This dataset contains USACE IENC distance mark locations. A
distance mark indicates the distance measured from an origin and consists of
either a solid visible structure or a distinct location without special
installation. Usually found on canals or rivers. These distance marks are
measured in Statute Miles.</span></p>
提供机构：
US Army Corps of Engineers
