what is the phisical features of willamette valley
arroyo
hanging valley
rift valley
No. California's central valley is a tectonic feature. No caldera is that large.
A feature of the land, such as a mountain, valley, river, plateau, road, distinctive landmark, etc.
it is not 100 man made it is 100 natural feature
rift valley
Arroyo
urban civilization
Fjord
natural features