>>40572806
>Natural Springs at 6,000 feet above sea level?
Yes. If you used your brain, you could understand why.
>These are being fed by what exactly?
Groundwater.
>dropped off by more than half in the last 70 years
Completely wrong.
>despite massive changes in precipitation
Again, completely wrong.

You might be thinking of snowpack, and not precipitation. Comes from not using your brain.