The bottom of an antarctic crevasse
mtp@mtpa.org.uk
The original uploader was <a href="https://en.wikipedia.org/wiki/User:Mtpaley" class="extiw" title="wikipedia:User:Mtpaley">Mtpaley</a> at <a href="https://en.wikipedia.org/wiki/" class="extiw" title="wikipedia:">English Wikipedia</a>.
CC BY 2.5
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