The Siren Board

Hello all, this is my for Yamagata Prefecture! It contains almost every location of the Outdoor Loudspeaker Child/Substations (Bosai Musen referred to by most of the people here on ARS) in the prefecture.

Please let me know if I'm missing anything on this map by using the request form or giving me a PM.

Yamagata Slave Station Map:
https://www.google.com/maps/d/edit?mid= ... sp=sharing