What types of topographic data are available for Washington County?
2-foot contours, with spot elevations, are available for the entire county. Basic planimetric data was collected, including road edges, (urban and rural), paved trails, railroad centerlines, bridges, major culverts, dam structures, rivers and streams, lakes and ponds, towers, (water, communication, steel electrical). A digital terrain model, (DTM), was created using break lines along changes in slopes and a mass point grid of 50ft for areas requiring contours.