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On Wed, 2 Jun 2004 22:41:09 -0400, Kevin Brooks wrote:
If you think that such facilities can only be built in granite, think again. I'd be very surprised if Mount Weather in Virginia, one of the formerly-secret (along with Raven Rock in Maryland and the congrssional facility at White Hot Springs (IIRC) in West Virginia) emergency relocation sites, was built in anything other than that Karst limestone you ridiculed earlier. Mount Weather and Raven Rock are both tunnel complexes. Dunno about Mount Weather or the Congressional Continuity of Government site located under the Greenbriar resort in Sulphur Springs, West Virginia, but Raven Rock (Site R) is dug into part of the Catoctin anticline (the site is actually in Pennsylvania, just north of the Maryland border.) The Catoctin anticline is composed of late Precambrian basalt lava flows that later metamorphosed into the characteristic Catoctin "greenstone" (metabasalt), which is considerably harder than limestone. ljd |
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