U.S. Highway 101, is a north–south U.S. highway that runs through the states of California, Oregon, and Washington, on the West Coast of the United States. It is also known as El Camino Real (The Royal Road) where its route along the southern and central California coast approximates the old trail which linked the Spanish missions, pueblos, and presidios. It merges at some points with California Highway 1.
"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" & choose Satellite & 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