These photographs were mostly taken from the ADMMR Mining collection, records on mineral resource exploration and mining in Arizona from late 1800s to the early 2000s. Photographs principally relate to a mineral locality reported in the Arizona Mineral Industry Location System. Photographs titled "ADMMR" document the history of the Arizona Department of Mines and Mineral Resources, making up a little over 10 percent of the collection. Items were arranged alphabetically by prints and negatives, then slides and lastly Polaroids. The hyphenated number at the end of each title refers to the old numbering system employed by our dedicated volunteers and should not be confused with a mine's name.