To get an idea of scale: Estes Park is in the middle of the map (labeled) and the little red arrow points to Drake.

I will edit or post a comment below if I can get a total rainfall amount for the area.
From an article published yesterday:
Three towns, Lyons, Estes Park and Jamestown, were totally isolated by water and cascading rivers. Lyons lost power and Estes Park lost telephone lines and cell tower service. The only way residents could speak with the outside world was through ham radio.