1997. U.S. Geological Survey. The locations of features labeled as "Airports" in the U.S. Geological Survey's Geographic Names Information System (GNIS) datafiles, 1997. The GN... Napa County (Calif.). County Of Napa.
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42. Bridges
2006. CalTrans, Napa County Public Works, Office of Historic Preservation. Napa County Bridges. Napa County (Calif.). County Of Napa.
2010. VESTRA Resources Inc. Boundaries for Cemetery Districts in Napa County. Napa County (Calif.). County Of Napa.
2010. Vestra Resources Inc. Cemetery Districts: Spheres of Influence. Napa County (Calif.). County Of Napa.
2010. Towill, Inc.(comp.). Elevation Contours of the Napa River Watershed Area, 5 foot interval. The area covered by this data is referred to as the Watershed Area because i... Napa County (Calif.). County Of Napa.
46. Domestic_Wtr
2005. Napa County Conservation Department. Napa County's Domestic Water Supply Drainages pertaining to Napa County Ordinance 1219. Boundaries taken from the Drainages layer. Napa County (Calif.). County Of Napa.
2011. Napa County Department of Environmental Management. Point locations of facilities in Napa County with hazardous material concerns. Napa County (Calif.). County Of Napa.
2009. Napa County Conservation, Development Planning. Napa Valley American Viticultural Areas (Sub-AVA's)
Polygons showing the area in Napa County that are part of the Napa Valley American Viticulture ... Napa County (Calif.). County Of Napa.
2010. Towill Inc. Spot Elevation Points of the Napa River Watershed Area, 200 foot interval. The area covered by this data is referred to as the Watershed Area beca... Napa County (Calif.). County Of Napa.
2002. Vestra Resources Inc. Redding, CA. Boundaries of the ten Water Districts in Napa County. Napa County (Calif.). County Of Napa.