01 / Strata
Beside strata about 50 million years old,strata about 100 million years old.

At the Open-air Museum area of Mikasa Geopark, a formation about 50 million years old lies next to the Mikasa Formation, about 100 million years old. Stepping across the boundary is described as jumping 50 million years at once. Many ammonite fossils have also been found in the Mikasa Formation.
- A formation about 50 million years old
- Mikasa Formation: about 100 million years old
- Hitomatagi 50 Million Years
