A hidden 75 mile underground tunnel?

Hello all my friends on ATS..Your first drink is on me tonight!!..I have been doing some snooping around and listening quite attentively these days and I have heard and this from numerous people that there is a 75 mile underground tunnel that leads from the White House to Mt Weather! I dont live too far from Mt Weather and Ive come to find out that there are trails you can hike on(Appalachian Trail) that allow you a birds eye view of this facility however you are sometimes met by armed personnel who take cameras and anything else used to document the findings there..is any of this true and what other interesting information have you heard about this enigmatic piece of real estate..Thanks

You might want to have a look at this thread. Mount Weather : Secret Underground Complex

Lots of info and/or speculation on just what this complex is.

Thanks for the link sensfan..