Complex sentence: Much deeper in the cave is a space known as the "Aggie Art Gallery," containing a reddish maroon clay and dozens of handmade sculptures, all formed and left behind by cavers.
Split into simpler sentences: Much deeper in the cave is a space known as the Aggie Art Gallery. The section of the cave has a concentration of reddish maroon clay and features dozens of handmade sculptures, all formed and left behind by cavers.