Why did the grizzly cross the railway tracks? Well when you're the biggest grizzly around and have know to have eaten at least two black bears, a whole frozen elk and lot, lot more. His number tag 122 might as well be his I.Q., for the way he is able to navigate the valley to start at least two families. When other large males run from him, whereas anywhere else they would be the kings. Who cares why he crossed the tracks, you get out of his way and let him.