HUC 2 - Region
收藏官方服务：
资源简介：
This dataset is a representation of Hydrologic Unit Code (HUC) boundaries at the HUC2 level compiled from U.S. Geological Survey (USGS) National Hydrography Dataset (NHD) and U.S. Department of Agricultural (USDA) National Resources Conservation Services (NRCS) Watershed Boundary Dataset (WBD) sources.
提供机构：
{{source}}创建时间：
2021-07-29
