 The Voortrekkers used ox-wagons () during the Great Trek north and north-east from the Cape Colony in the 1830s and 1840s.An ox-wagon traditionally made with the sides rising toward the rear of the wagon to resemble the lower jaw-bone of an animal is also known as a "kakebeenwa" (jaw-bone wagon).Often the wagons where employed as a mobile fortification called a laager, such as was the case at the Battle of Blood River.