You can display historical use maps overlays from the Historical button at the top of the map.
- When requested, the following options are available:
- Certified Sanborn Maps (Abbreviations are available by clicking the key.)
- Historical Aerial Photos
- Historical Topo Maps
- You may select a year of coverage from the menu.
(Some aerials that have not been georeferenced will appear in a separate window.) - The vertical slide bar located next to the list of years enables you to adjust image opacity.