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/datasets/7caf8811ed864b43b067e6ba652ed135_0
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资源简介：
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.
提供机构：
US Army Corps of Engineers
