Somewhere in the hills surrounding the Miva mountain, in an almost inaccessible place near the Masuka lake in Japan, there is a strange hard rock boulder. It seems t o have been thrown from heaven. It is strange because of its unusual shape: it contains two large square holes. The boulder is about 11 meters in length, 8 meters wide and about 4.7 meters high. The upper surface is smooth and some lower parts show signs of possible carving techniques.

Why this boulder is here in the region of the Miva mountain remains a mystery. The purpose of the well defined squares is also unknown. These squares have flat surfaces and sharp corners, the construction of which requires the same technological abilities used in Egypt or South-America.

This Masuda boulder is another example of inimitable technology: applied in an inaccessible remote place, and apparently without any clear purpose.

Is it meant to show supreme technological superiority? To impress ordinary people who have no idea how to tool such an enormous block of hard stone?

Who worked this boulder, how and why?

More information in Ref. Hancock.