TAILBOARD • DICTIONARY ONE.COM • Definition of Tailboard

... was covered from stem to stern with six inches of ice, says, "As we proceeded up the pass we faced a wind so cutting that we had often to make a rush for the shelter of a tree or walk in a crouching position behind the tailboard of a sleigh for a few minutes' respite. We overtook some on the trail next day out of a notorious tent town known as Sheep Camp. Many of them were staggering blindly along, with heavy loads on their backs, some of them off the trail and groping for it with their feet. These we ...

— Policing the Plains - Being the Real-Life Record of the Famous North-West Mounted Police • R.G. MacBeth