...wow. This is something I'd never thought I'd see on Neatorama! This is my hometown! However, you're stats are wrong. At last count, there's well over 65,000 signs now! Reading this post got me curious so just I phoned the Visitor Info Center and asked. :)

For more info on the forest, go to-
http://www.yukoninfo.com/watson/signpostforest.htm