Correct about the -san, -yama. Pretty basic Japanese.
Looks like the Japanese government is going to have to set up a gate at every mountain road entrance and force people to pay outrageous fees to dispose of their garbage , just like they do to commuters who use the expressways in Japan . A one way trip from Fukuoka to Tokyo - roughly 900 miles , will set you back $ 250 - the same as an air ticket !