Even though Arizona is full of history the bottles found there are mostly from the slick 1910-1920 variety. The best privies were dug back in the day of course. The remaining privies are on private land or in areas that are remote and have to be 4wheel drive accessed. If you are bottle collector in Arizona, you will find more/better bottles in the antique stores. If you are digging privies in Arizona you will have to dig, dig, dig before you find anything worth writing home about.