Figure 1.
The figure presents two side by side maps. The left map is labelled Blackfeet Reservation and the right map is labelled Crow Reservation. Each map shows reservation boundaries for three time points, 1890, 1900, and 1915, distinguished by different fill patterns. The 1890 reservation areas appear as solid shapes, later reservations are shown with hatched patterns. Black dots mark Bureau of Reclamation irrigation expenditure locations within or near the reservation boundaries. Year labels are placed directly on the mapped areas to indicate the corresponding reservation extent. A legend below explains the symbols for irrigation expenditure locations and the three reservation years.Blackfeet (left) and crow (right) reservation land, 1890–1915; BoR reserved irrigation land (1902, dotted areas) and planned BoR irrigation projects