Subbasins (Feature Service)

A statewide datalayer of the approximately 2300 sub-basins as defined and used by the USGS Water Resources Division and the Mass Water Resources Commission and as modified by Executive Office of Energy and Environmental Affairs (EOEEA) agencies. More details... Map service also available.该数据集为覆盖全州范围的子流域数据层，包含约2300个子流域，其定义与使用标准源自美国地质调查局（USGS）水资源分部及马萨诸塞州水资源委员会，并经马萨诸塞州能源与环境事务执行办公室（EOEEA）下属机构修订。更多详情……此外还提供地图服务。