Galapagos 2005 Expedition. The EM-300 multibeam data collected during the
cruise revealed these two back-to-back calderas. The calderas were initially
discovered in 2003 by K. Hoernle,(PI, IFM- Geomar, Kiel), R. Werner (Chief
Scientist, IFM- Geomar, Kiel), D. Christie (OSU) and colleagues. In a contest
for school children the calderas were named 'los huellos' - the footprints.