This data release contains digital data generated by the U.S. Geological Survey under cooperative agreements with Sonoma County Water Agency and the California State Water Resources Control Board to characterize the three-dimensional hydrogeology of the Russian River Watershed, located in the northern part of the California Coast Ranges section of the Pacific Border province. This dataset contains geospatial data of a three-dimensional hydrogeologic framework model (3D HFM). The 3D HFM was constructed using methods from previously published reports. Sources of 3D HFM construction methods can be found in the metadata. The geospatial database contains a polygon feature class that is a 2-dimensional representation of the 3D HFM. The polygon feature class is a cellular array where each model cell has multiple attributes including XY location, and interpolated elevations and thicknesses of hydrogeologic units.