It is located about 130 km south of Tokyo metropolitan area and has Mt Miyatsukayama with an altitude of 508 m at the center of the islet. Its soil mainly consists of basalt. The whole islet is covered with Camellia japonica.
BirdLife International (2020) Important Bird Areas factsheet: Toshima island. Downloaded from
http://www.birdlife.org on 20/09/2020.