Drainage Districts in Iowa
收藏Iowa Geospatial Data Portal2020-12-16 更新2026-05-16 收录
下载链接：
https://geodata.iowa.gov/documents/iowadnr::drainage-districts-in-iowa
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资源简介：
This GIS coverage represents an approximation of the public drainage district boundaries in Iowa. It also represents the infrastructure of the drainage districts, which includes tiles, and ditches. This information was digitized mainly from maps provided by county governments, usually the drainage clerk in that county. The accuracy of this coverage varies widely and should be used mainly as a guide, not exact ground conditions or locations.
提供机构：
Iowa Department of Natural Resources
创建时间：
2020-12-16
