My Pottery Sensei took me to Seto City yesterday to pick up some pottery supplies: clay, tools, and glazes. It was only about a 2 hour drive from Takayama. Seto City is the ceramic capital of Japan. It was one of the original places that pottery traditions had migrated to from China a millennia or so ago.
We stopped by a clay warehouse and filled up the back of the car with a few hundred pounds of clay.