A base map is
|“||[t]he map of the community that depicts cultural features (e.g., roads, railroad, bridges, dams, culverts), drainage features, and corporate limits.||”|
|“||a spatially accurate map that shows the georeferenced location of geographic features. These features include roads and railroads, streams and lakes, boundaries, other geographic features, and related names and labels.||”|
"Most base maps are created today using orthoimagery, which are aerial photographs processed to have the spatial accuracy of a map."