Tsuneyama (Mount Tsune) rose in the middle of what used to be Kojima island. The Seto sea near Okayama city sports a number of very large islands. While Kojima may not be the most profitable and interesting of places, especially during the era of warring states, it served as a sort of buffer between the sea and Okayama castle. The Ueno clan decided to take it over in 1486 and spent a few years building a castle there.
The way the mountain raises straight up from the flat land below with a view from the top that includes both ends of the small mountain range and all the way across to Okayama city makes it understandable why it would be the perfect place to build a castle.
Now, however, the sea has been filled in with reclaimed land. Kojima is no longer an island, the canals of Kurashiki no longer can carry goods all the way to the sea, and Tsuneyama castle has been left to rot away under the weight of trees and ivy.
I live at the bottom of this mountain, where the land would have made a sandy beach. According to the "Hazard Map" they gave me when I moved here, I'm in danger of being flooded out if a giant tsunami ever breaches the sea wall. However I think I'm just high enough, and just far away enough from the wall, that I'd have lots of time to run up the mountain before the water got to my house as the rest of the land around me returned to the ocean.( Collapse )