GREAT FALLS - Six U.S. Geological Survey crews are stringing barbed wire this summer in parts of 7.3 million acres of Montana backcountry in the first stage of a $1 million census of grizzly bears.

ARMAS EXPLAINS HOW THAT TERRAIN MEXICO AND MEXICO. SOME CLOSED OFF BY STEEL WALLS. OTHER AREAS BARDED FENCES >> SEVERAL MILES IS NORMANDY FENCING. DOZENING MILES IS ONLY BARBED WIRE. >> THAT'S ALL THE ...