This beautifully spotted Mammoth Donkey, all of about 17 hands tall, was with a heard of Mammoth Donkeys in Collee Station, Texas.  I had heard about them over the years, but never was privileged to actually see on until a visit to College Station.

The mammoth donkey is commonly known as the mammoth jack or American mammoth.  They are descended from multiple breeds of donkey imported to the United States.