The Agency soon set up the Fort Berthold Reservation originally consisting of some 8 million acres (32,000 km²), but by 1910, the size of the reservation was about 900,000 acres (3,600 km²) of land.
The Agency soon set up the Fort Berthold Reservation. This Fort Berthold Reservation was originally consisting of some 8 million acres (32,000 km²). The size of the reservation was about 900,000 acres (3,600 km²) of land. This was by 1910.