This dataset contains polygons representing the areal extent of mineral districts in the state of Arizona. The districts delineated in this report are based on the map by Keith et al. [1983a], which served as a starting point for this database. These districts attempt to delineate areas of uniform by geologic character and age of mineralization. The classification system for the districts is taken from Keith et al. [1983a, AZGS map 18]; the report that accompanies that map discusses definition of the districts, and has a summary of metal production for districts for which data were available as of 1981 [Keith et al., 1983b, AZGS Bull. 194]. This database is an attempt to assign accurate spatial locations to the districts shown on the Keith et al. [1983a] map, and to provide more in depth information on the geology of the districts. The production data included in the table DistrictDataAZMIN are imported from a previous Arizona Geological Survey database [Welty et al., 1989 (AZGS OFR 89-9] that contained the production data from the printed publication [Keith et al., 1983b].