The ARCE Collection is complex and includes photographic images, key maps, reports, and other materials.
Key maps and photographic images:
One of the most unique aspects of the ARCE collection is that some of the photographic images have corresponding key maps. Key maps indicate the position from which a photograph was taken. Each photographic record contains a field with the key map reference number as well as a link to the corresponding key map. By clicking on the link, the corresponding map will pop-up and it will be possible to identify the precise location where the photograph was taken using the reference number.
Example Photographic Image with "View Keymap" link located at the bottom of record:
Example of Keymap and using "key map reference #" to locate where the corresponding photographic image was taken: