Ala-Korkiakangas is an ancient seashore that is now, due to the post glacial rebound, 55 metres above sea level . The rock formations emerged from sea about 6500 years ago.
<a href="//commons.wikimedia.org/wiki/User:Estormiz" title="User:Estormiz">Estormiz</a>
<span class="int-own-work" lang="en">Own work</span>