A large fossil burrow on a canyon wall with methane bubbles escaping.
Image ID: expn0863, Voyage To Inner Space - Exploring the Seas With NOAA Collect
Location: Welker Canyon, southwestern wall, ?-1407m
Photo Date: 20130815T203113Z
Credit: NOAA OKEANOS Explorer Program , 2013 Northeast U. S. Canyons Expedition
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