Animals were another important factor for Spanish triumph. On the one hand, the introduction of the horse and other domesticated pack animals allowed them greater mobility unknown to the Indian cultures. However, in the mountains and jungles, the Spaniards were less able to use narrow Amerindian roads and bridges made for pedestrian traffic, which were sometimes no wider than a few feet. In places such as Argentina, New Mexico and California, the indigenous people learned horsemanship, cattle raising, and sheep herding. The use of the new techniques by indigenous groups later became a disputed factor in native resistance to the colonial and American governments.