at Kötlujökull Mýrdalsjökull, the fourth largest glacier in Iceland.
The dark material incorporated into and on the glacial ice is ash and cinder from countless volcanic eruptions.
The interior of a natural tunnel in the glacial ice.
at Kötlujökull Mýrdalsjökull, the fourth largest glacier in Iceland.
The dark material incorporated into and on the glacial ice is ash and cinder from countless volcanic eruptions.
The interior of a natural tunnel in the glacial ice.