where to find water bottles

from vande velde's vuelta tour diary:

One thing that I did think of today was that if every rider drank 11 bottles and there are 196 riders, that means that there about 2000 empty water bottles scattered across the N67 from Córdoba. I know for a fact there was no one out there, so if you need bottles, you know where to look.

it was 113 degreen farenheit at the top of the climb. ugh.