2017.09.19-23 The Irma Evac Roadtrip - Rix Pix
Ruby Falls, TN.  When they discovered this chamber, their kerosene lanterns could only illuminate 1/4 of the way up.  No red or blue lights then.

Ruby Falls, TN. When they discovered this chamber, their kerosene lanterns could only illuminate 1/4 of the way up. No red or blue lights then.