One of the largest aquifers in the United States (if not the world), whose size is still unknown and whose bottom has not been found, is in the middle of DEATH VALLEY.
That sounds like a fascinating read, have anymore information so some research can be done on the internet?
Most of the valleys out that way are actually old river or old lake beds. Aint hard to see if you look at it and think that water wont lay on top of hills.
I got a place in Golden Valley AZ. Kingman is in the next valley. Along the Golf course on the side of the cliffs you can see where the water had washed out bowls against the sandstone ages ago. Yet..it wont take that long to suck those dry if they over populate. Phoenix is actually sinking from the draw off the aquifer. The problem isnt the water, its the lack of amount of rain they get to regenerate that aquifer.
Funny thing, the higher up the mountains you go the shallower the wells are. Up the mountains, some wells are just 80 feet down and endless recovery. Down in the valley they can drill a thousand feet before they get water. I know one lady who has a well just down from me who has a well at just over 250 feet and the recovery is at about 50 gal. But, you can bore some dry holes there also.