Esan Prefectural Natural Park was created in 1961.
The area of Esan Prefectural Natural Park is 41.16 square kilometers.
Akkeshi Prefectural Natural Park was created in 1955.
Kasagiyama Prefectural Natural Park was created in 1964.
Okuhino Prefectural Natural Park was created in 1994-12.
Hokusetsu Prefectural Natural Park was created in 2001-08.
Kotō Prefectural Natural Park was created on 1987-05-15.
Asahiyama Prefectural Natural Park was created on 1940-09-13.
Wanitsuka Prefectural Natural Park was created on 1961-03-31.
Shumarinai Prefectural Natural Park was created on 1974-04-30.
Mineokasankei Prefectural Natural Park was created on 1935-08-09.
Okukuma Prefectural Natural Park was created on 1955-04-01.
Fukiagehama Prefectural Natural Park was created on 1953-03-31.