Until the early 1880s, this portion of Montana was wild and unsettled country used by various Indian tribes for hunting bison and gathering other resources. Many of these tribes lived in tipis, and while most used a tripod when raising the tipi, the Crow and the Blackfeet used a four based pole. Before wooden stakes were used to hold the hem of the tipi down, rocks served that purpose, and when camps moved, the tipis were pulled away from the rocks, leaving circles of stones; tipi rings can still be found throughout this country. Interactions among the tribes included trade, marriage, and warfare, and warfare on the plains consisted of acts of honor or counting coup. Although many tribes used the area, it was generally occupied by the Binnéessippeele, or River Crow band of the Apsáalooke Nation. In the 1850s, treaties began to control the movement of Indians through reservations, and each subsequent treaty decreased the size of the reservations. As the large bison herds were slaughtered for their skins and to diminish the food source of the Indian nations, and as reservations imposed increasing limits, a way of life ended and the way of the warrior faded away.