If I am using Digital Sanborn Maps, how can I navigate to a different map?
If you are currently viewing thumbnails, the drop-down menus for city and date remain at the top of the screen:

You can use these drop-down menus to change your map.
Additionally, you can begin a completely new search by clicking on the
Browse Maps button located at the top left of the page:

If you are no longer in thumbnail view, you can just click
Close Window at the top left of the page:

This will take you to the previous thumbnail page.