Enormous riffles left on West Bar, Columbia River from ice age floods
Schlüsselwörter
riffle,
ripple,
enormous,
huge,
columbia river,
washington,
aerial,
massive,
flood,
nature,
pattern,
texture,
natural,
background,
grooved,
water,
ancient,
geology,
geologic,
quincy,
desert,
arid,
dry,
landscape,
rugged,
dune,
wave,
barren,
formation,
cliff,
rock,
scour,
smooth
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