GL_Mackinac 2019 ESI HYDRO Polygons, Lines

The feature classes HYDROL and HYDROP contain vector lines and polygons representing the coastal shoreline and hydrography used in the creation of the Environmental...要素类（feature classes）HYDROL与HYDROP涵盖矢量线与多边形数据，用于表征海岸岸线与水文地理要素，可应用于环境相关成果的创建流程。