The AZGS and its predecessor agencies have released four (4) statewide geologic maps of Arizona. The 1924 and 1969 maps were published at a 1:500,000 scale. The 1988 and 2000 maps were released at 1:1,000,000 scale. They are all available for download at our online document repository
1924 geologic map - https://library.azgs.arizona.edu/item/AGMS-1552427689610-270
1969 geologic map - https://library.azgs.arizona.edu/item/AGMS-1552427830191-395
1988 geologic map - https://library.azgs.arizona.edu/item/AGMS-1552428420378-75
2000 geologic map - https://library.azgs.arizona.edu/item/AGMS-1552428422626-489
Photo Date: circa 2015