Intervals of fl oodplain formation along the Little Missouri River, North Unit of Theodore Roosevelt National Park, North Dakota, as of 2003

Intervals of floodplain formation along the Little Missouri River, North Unit of Theodore Roosevelt National Park, North Dakota, as of 2003. The map was generated using the image-comparison method, overlaying images from 1939, 1949, 1958, 1966, 1974, 1982, 1995, and 2003. Dates define the photo interval during which the status of a polygon last changed from channel to floodplain. The rectangle indicates the location of the reach mapped by another scientist in 1968. The outer edge of the floodplain is bounded by alluvial fans, hillslopes, and sporadic bedrock outcrops. Figure from Miller and Friedman (2009).