High, "some like gigantic tusks, some like sugar-loaves, and some like vast stalagmites," but all consisting of iron-grey or reddishbrown conglomerate of gneiss, mica-slate, syenite and greenstone.
Here also are polished stalagmites, a rich buff slashed with white, and others, like huge mushrooms, with a velvety coat of red, purple or olive-tinted crystals.
The Gothic Avenue contains numerous large stalactites and stalagmites, and an interesting place called the Chapel, and ends in a double dome and cascade.
There are eleven enormous pits, many large fine stalactites and stalagmites and surprisingly beautiful mural decorations.
High, surmounted by statuesque stalagmites, near which is another quarry of satinspar with similar fragments, pounders and aboriginal relics.