Underground Compound of 4 Fallout Shelters in Montana Awaits Buyer To Burrow In Underground Compound of 4 Fallout Shelters in Montana Awaits Buyer To Burrow In Listed for $1.75 million, this quartet of below-ground homes sit under 10.6 acres in Paradise Valley near Emigrant, MT, north of Yellowstone National Park. Tiffani Sherman, provided by FacebookTwitterEmail When spectacular mountain views are available, nearby homes almost always feature an abundance of windows to soak in the vistas. However, this property in Montana heads in a completely opposite direction. These four homes have no windows at all they re completely underground. The quartet of below-ground homes sit beneath 10.6 acres in Paradise Valley near Emigrant, MT, just north of Yellowstone National Park.