Washington County is part of a growing list of Iowa counties that have started compiling their geographical information in house. Duane Royer heads up Washington County GIS. He says it involves more than just updating maps. Royer says GIS is utilized by virtually every county agency…from public safety…to the assessor's office. He estimates its cost at about 100-thousand dollars per year. At this week's board of supervisor's meeting, many different department heads attested to the service's usefulness. They say it more than pays for itself.