Just check out Dry Falls State Park in eastern Washington State and you’ll see the evidence.
http://en.wikipedia.org/wiki/List_of_Doctor_Who_serials
http://www.youtube.com/watch?v=PhZ1-_aod80
I’m headed up to Sun Lakes State Park (with Dry Falls towering above it) later this week with the boat. Fishing season ended today, though.
Don’t understand your first link.