Sulfur and the Otomo Clan (2)

     The first list in 1364 included, oddly enough, a mountainous valley, Yufuin, along with other rich paddy field areas and port towns.  Under the Yufuin entry, 3 villages were added as a supplementary note; Namiyanagi, Shukuri, and Tsukahara.

     Namiyanagi lies north upstream of Yufuin Valley at the west foot of Mt. Yufu-dake.  The mountain is at an altitude of 1583 meters.  Tsukahara is further north-west upstream in the highlands surrounded with Mt. Yufu-dake, Mt. Tsurumi-dake (1374 meters), and Mt. Garan-dake (1045 meters).  The 3 mountains are active volcanoes.  Especially Mt. Garan-dake emits gasses and vapor even today, and also known as Mt. Io, literally Mt. Sulfur.  You can find natural crystalized sulfur around the crater.