<div class="quoteheader"><div class="topslice_quote">Quote from: http://www.d20pfsrd.com/skills/knowledge</div></div><blockquote class="bbc_standard_quote">Dungeoneering (aberrations, caverns, oozes, spelunking) </blockquote><div class="quotefooter"><div class="botslice_quote"></div></div>These are natural caverns your geography check tells you that. However any information about what creature live down here falls under Dungeoneering. Unless they are dwarfs which they are not.