Groundwater harvesting in the Willcox Basin is driving ground subsidence. This picture from the corner of Old Fort Grant Rd and Ranch House Rd shows 9.7 feet - as marked on the telephone pole - of subsidence between 1969 and 2018. Looking west the Winchester Mountains are on the horizon. For more on subsidence in Arizona see the Arizona Dept. of Water Resources InSAR subsidence monitoring program: https://new.azwater.gov/hydrology/field-services/land-subsidence-arizona.
Provided by Brian Conway, Arizona Dept. of Water Resources.