As early as 1871, the Bannock Indians of Idaho were outraged over the
numerous government violations of the Fort Bridger Treaty (1868).  The
growing presence of white settlers and their livestock on the Camas Plains
threatened the Bannocks' traditional food staples, most notably the roots
of the camas plant, which they used to make bread.  In 1877, government
rations were cut to the bone, and the Bannocks were ordered confined to
the Fort Hall Reservation.  Led by their chief Buffalo Horn, they rebelled
i n 1878.  In the course of the year-long war, Buffalo Horn was killed. 
Fragmented and disillusioned, the Bannocks returned to the Fort Hall,
where this photograph of several Bannock prisoners was taken.