bison on hwy 240

240 america american animal animals badlands big bison black bovinae broad buffalo bull calf coat country cow dakota dakotas entrance eventoed getaway graze grazer grazing hair hairy heavy herd herding hills hoofs horn horns hwy large long mammal muscle muscular national park pinnacles places plains roar roaring shaggy south species stampede state states travel trip undulate undulates united usa vacation wild wildlife wisent wood zubr