The stone rock looks like turtle looking up from the below so this is called turtle stone.
There is an old saying in Japan"Crane can live over thousand years and turtle does tens of thousand years" Turtle or crane live longer so that it is symbol of lucky charm.
This rock stone is kept carefully.
![Image from Gyazo](https://i.gyazo.com/3e10bc86bef544dc909493c940391190.jpg)
Photogrammetry from 676 photos taken with D750 and RX100Ⅱ in Feb. 2020
Address is Tamura City, Fukushima Prefecture,Japan
(福島県田村市都路町岩井沢馬酔木沢298)
GoogleMap: https://goo.gl/maps/V5xRrH6CYK9fxPu99