Time lapse of pit chains in Iceland from 1976-2018. There is a person in each image for scale, and the red circles show you the same two rocks in each image for perspective. Image credits: a) George McGill, b) David Ferrill, c) Jennifer Whitten.
Time lapse of pit chains in Iceland from 1976-2018. There is a person in each image for scale, and the red circles show you the same two rocks in each image for perspective. Image credits: a) George McGill, b) David Ferrill, c) Jennifer Whitten.