Organ Cave

The cave's serious history is industrial. Cave dirt is naturally rich in calcium nitrate, and Organ Cave was mined for saltpeter — the critical ingredient of gunpowder — before 1835 and again during the War of 1812. During the Civil War, Confederate soldiers under the command of Robert E. Lee worked the deposits systematically, excavating the very stairway by which tourists still descend one hundred fifty feet into the Chapel Room. Tradition holds that Lee and his troops attended a church service in that entrance chamber during the campaign.

What survives is the largest collection of Civil War saltpeter hoppers in the country: thirty-seven of the original fifty-two wooden leaching vats still line the S-shaped passage called Hopper Alley and the Hopper Room, preserved well enough that the National Register nomination dryly observes some could still be used. The landmark designation in 1973 cited the system for its size and specifically for its 'saltpeter troughs and vats' — a rare case of a battlefield supply chain preserved in situ, underground, where the weather can't get at it.

Early saltpeter miners also pulled bones out of the cave — among them a forearm and a hand bearing enormous claws, which the owner forwarded to Thomas Jefferson. Jefferson described the specimen in 1799 as 'Megalonyx,' the Great Claw: the first giant ground sloth reported from the United States, and an animal he suspected might still be alive in the western interior.

The file marks one caution. The attribution of Jefferson's fossil specifically to Organ Cave dates to the early twentieth century, when Andrew Price of Marlinton assigned it there; the record cannot prove which Greenbrier County cave produced the bones. The sloth is real, the paperwork is folklore — a distinction that turns out to be this cave's specialty.

The haunting claims keep to the working sections. Figures are reported in and around the saltpeter passages; local lore calls them the saltpeter men, the Confederate miners said to linger at the works they never quite left. It is the expected attribution — the cave's only long-term residents were laborers, and the reports assign the anomaly to them accordingly. No investigator has produced anything the file can rate above folklore, and the cave's operators, to their credit, sell the hoppers rather than the haunting.

There is also the matter of the dam. In 1910 the owners built a dam inside the cave intending to create a small lake for stocking trout — a plan that survives in the tour narrative as evidence that the industry's confidence has always exceeded its geology.

A working show cave with two hundred years of continuous documentation, a National Natural Landmark plaque, a National Register listing from 2005, and the strangest industrial museum in West Virginia: a Civil War munitions works preserved because nobody ever bothered to haul the equipment out. The saltpeter men remain on file as legend. The hoppers they left behind are in excellent shape.