Here is a ride that's so low-tech that it keeps operating even if there's a power failure. However, that does not mean it is always reliable. It can stop for no apparent reason or for reasons known only to the mules.The ride operated from a Frontierland loading area that sent guests and their little mules clomping along dusty wilderness trails with the rowdier Stagecoach and Conestoga wagons often in sight.In May 1957, 25 pack mules are bought for $50 apiece to be used in the mule pack. In 2022 dollars it would be $533 each. Walt insisted that mules be part of his Frontierland.