Colorado Division of Water Resources. Irrigation canals and ditches in the South Platte River Basin. Canals and ditches are assigned to a HydroBase Diversion structure with a WDID. Colorado Department of Natural Resources.
U.S. Geological Survey, U.S. Department of Agriculture - Natural Resource Conservation Service, and U.S. Environmental Protection Agency. The Watershed Boundary Dataset (WBD) is a comprehensive aggregated collection of hydrologic unit data consistent with the national criteria for del... U.S. Geological Survey, U.S. Department of Agriculture - Natural Resource Conservation Service, U.S. Environmental Protection Agency.