Columbia subject headings:
Bretz, J. Harlen, 1882-1981.
Erosion--Columbia Plateau.
Geology--Columbia Plateau.
Glacial landforms--Columbia Plateau.
Harvard subject headings:
Bretz, J. Harlen, 1882-1981.
Erosion--Columbia Plateau.
Geology--Columbia Plateau.
Geomorphology--Columbia River Valley.
Glacial landforms--Columbia Plateau.
Princeton subject headings:
Bretz, J. Harlen, 1882-1981.
Columbia River (B.C. and Wash.)--Floods.
Floods--Northwest, Pacific.
Geology, Stratigraphic--Holocene.
Geology--Northwest, Pacific.