Safety check work at Minami Tajima Green Ride 2023

I went to Hyogo Prefecture to work as a course advisor for the Minami Tajima Green Ride 2023.
This area, dotted with the Ikuno Silver Mine and the Akinobu Mine in Yabu City, is where weathering has exposed underground magma from when the Japanese archipelago was still attached to the continent.
On the job, we checked the security system and the movement of patrols at intersections, and used RIDAS digital radios to build a communication network and check gains in areas with no cell phone service.