Figure 6.97 This map of land use and land cover also shows building footprints and parcels. The building footprints are outlined so that the land use land cover data can be seen underneath. A map like this shows you how you have to be careful about scale when there are data like building footprints. The footprints could be off from the underlying data layer, if, for example, the footprint data are derived from eighteen‑inch imagery but the land use land cover are derived from thirty‑meter imagery.