As regards the freighting business, the figures are beyond comprehension. The regular size of one of the freighting trains was twenty-five “prairie schooners,” each with from six to twelve yoke of oxen. The immense Conestoga or Pittsburg or Pennsylvania wagons were often six feet deep and seventeen feet long, flaring out from the bottom to the round covered top. They cost from a thousand to fifteen hundred dollars apiece; the mules, which had to be of the best, ranged from $500 to $1,000 a pair. Thus a ten-mule team was sometimes worth $7,000 per wagon, without including provisions, salaries and minor items. At one time, the single firm of Russell, Majors & Waddell had in service 6,250 of these huge wagons, and 75,000 oxen, more than were operating in all the rest of the United States.