n into the Bottomless Pit for a projections that mark successive drainage levels. low the ledge of observation. But on illuminating it There are five such levels, or tiers, in Mammoth Cave. short way and thus cross to the bridge. But it seemed safer to return as we had come in. Accordingly we re- a… … Entering therefore a rift in the rocks pointing City as being but 450 ft. long, 130 wide, with a back toward the pits, we had no great trouble in circumference of about 1,500 ft., and an area of about which, after several attempts, Mr. Hains succeeded in reaching what proved to be the Bottomless…
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