White Shield developed a GIS base map of 1090 parcels located within Benton County, WA. Survey control was established on over 40 aerial pre-marks for countywide orthophotography (50 mi x 35 mi), and drawing files were provided named for the Section, Township, and Range of each section constructed. White Shield ensured that all project elements were on their appropriate layers, and that all of the layers followed the project layer listing scheme. Topology was created for the section, and each polygon was created with a block symbol, with attached attributes for each polygon. Polygon block attributes for each section were compared to the County Assessor list for accuracy and completeness.