Discovery
In 1983, a large trunk of a tree happened to appear out of the ground during construction work of rice fields in Azukihara valley. Then, the excavation surveys at the Azukihara valley were made for 3 years from 1998 and, as a result, a large number of trees were found out in the earth of the said area.
(Photo)
The first sign of the Lost World :
A large trunk of a tree happened to appear out of the ground in Azukihara valley in 1983.
(Photo)
In 1998, the excavation surveys succeeded to find out the second tree in the earth of the Azukihara valley, following the first one discovered unexpectedly during construction work in 1983.
(Photo)
The excavation surveys at the Azukihara valley in 1999 :
The second tree was dug up by the roots.
Facts
Findings of the excavation surveys 1998-2000
・Being buried by volcanic eruption : Since about 4,000 years before (calendar age)
・Number of standing-up trees when excavated : 30
・Species of trees :
Over 80% : Japanese Cedar
The rest : Buckeye, Zelkova, White Oak, etc.
・The largest trunk : 2.5 meters in diameter near the root
・The tallest tree : 12.5 meters in height (Japanese Cedar)
(Photo)
The tallest tree with a trunk the largest in diameter,
standing in the underground exhibition hall :
・12.5 meters in height
・2.5 meters in diameter
