It seems every year these convoys are going someplace. Nebraska and flooded areas this year, drought stricken areas of Texas a couple years back, California another year. You Tube has an Allis Chalmers film on a similar project back in the late 40's/early 50's out in the plains after several major blizzards stranded cattle and people out in the sticks with nothing to eat. No helicopters back then. They used military cargo plans and kicked bales out the doors or used big crawler tractors (AC if course!) to sled hay in to cattle. Not much changes I guess.