You get seasick driving here...
The hilly landscape here is a result of the massive Missuola floods at the end of the Ice age.
(Check the map, go to "larger map" and choose Satellite, and zoom out 1 or 2 levels. A large area from here towards the south east has a peculiar pattern of elongated, parallel hills, which can only have been shaped by massive flows of water.)
St. Thiel road, part of a short (but not fast) cut between r 26 and r 260, on our way to Palouse falls.
South east Washington, USA
On tumblr here