> (I'd bet there are surface features that give hints to the underlying hydrology, too.)
Hard to imagine but I’m no geologist.
But the vally sits atop an aquifer so if you’re willing to drill arbitrarily deep you’re pretty much certain to hit water. Thus I find the refusal to specify depth hilarious.
Certain types of strata absorb water, and certain kinds don't. Locations of water sources, slopes, etc. will all matter. Some of these things will hint on the surface at what lies below.
I think the deepest people drill is not much more than 300 ft (still takes a lot of energy to raise a head of water) so maybe you’re right. It doesn’t seem that deep in geological terms so seeing traces on the surface is plausible to me(but again, I’m no geologist).
Hard to imagine but I’m no geologist.
But the vally sits atop an aquifer so if you’re willing to drill arbitrarily deep you’re pretty much certain to hit water. Thus I find the refusal to specify depth hilarious.