Yellow Jammers are antique buses used at Yellowstone National Park to transport park visitors on specialty tours. They were manufactured as the Model 706 by the White Motor Company from 1936-1939. The distinctive vehicles, with roll-back canvas convertible tops and wood body, were the product of noted industrial designer Alexis de Sakhnoffsky, and originally operated in seven National Parks. Yellowstone National Park still operates seven of their original buses today. Yellowstone's seven buses were restored in 2007 by TransGlobal. The bodies were removed from their original chassis and built upon modern Ford E-Series van chassis. The original standard transmissions were also replaced with newer automatics, removing the trademark "jamming" sound.
The American bison are the largest terrestrial animals in North America. They are cloven hooved ungulates, and are similar in appearance to other bovines such as cattle and true buffalo. They are broad and muscular with shaggy coats of long hair. Adults grow to approximately 660 lb in smaller cows, up to 2,200 lb in large bulls. Bison are nomadic grazers and travel in herds. The Yellowstone Park bison herd is the oldest and largest public bison herd in the United States. Wikipedia
