In addition, there's a designated natural hiking trail (made of sand and rocks ... basalt column waterfall – located by Stuðlagil Canyon in Efri-Jökuldalur in Fljótsdalshérað, East Iceland ...

Nested in the snow-covered mountains of western Iceland ... comes into contact with basalt and turns into white, chalky calcites that fill the pores of the rock The breath-taking Icelandic ...

Rocks play a vital yet often unrecognized role in the carbon cycle. Through a natural process that has helped regulate ...

This lava hardened into basalt rocks, and these were then ground into black sand by moving glaciers, according to Guide to ...