Constructed Drain
收藏Ontario GeoHub2026-06-19 更新2026-03-28 收录
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https://ontariogeohub-lio.opendata.arcgis.com/maps/9e3141bef7004496ac16cd21173eedb8
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资源简介：
This data keeps the Ontario Ministry of Agriculture, Food and Rural Affairs' records of modified or newly constructed drainage systems current.
Constructed drains include ditches, buried tile systems, or natural watercourses that have been modified to improve drainage.
创建时间：
2019-11-07
