Thousands of people visit Issaqueena Falls each year, following the short trail through the woods to one of the most recognizable waterfalls in the South Carolina Upstate. Most come for the waterfall or combine the stop with nearby Stumphouse Tunnel. It is difficult to imagine that this quiet landscape was once an industrial site where machinery ran beside the creek, and workers manufactured thousands of pounds of black powder for one of South Carolina’s most ambitious railroad projects.
Yet contemporary newspapers leave little doubt that a powder mill operated here.
The mill was closely connected to the construction of Stumphouse Tunnel and the remarkable railroad community known as Tunnel Hill. Workers drilling through Stumphouse Mountain needed enormous quantities of black powder to blast through the granite. Rather than haul all those explosives into the mountains from elsewhere, entrepreneurs harnessed the water flowing over Issaqueena Falls and manufactured powder almost beside the construction site.
What is more difficult to determine is what happened to the mill afterward.
Newspaper accounts let us follow it through the 1850s and, surprisingly, into the opening months of the Civil War. Then the trail becomes much harder to follow. Today, no obvious powder mill stands beside Issaqueena Falls, and even historical sources disagree about exactly where it was located.
That leaves one of the most interesting unanswered questions at Stumphouse Mountain: what happened to the gunpowder mill at Issaqueena Falls?

Issaqueena Falls Was a Working Landscape
The forest surrounding Issaqueena Falls can make the area seem untouched, but the landscape visitors see today is very different from the one people encountered during construction of the Blue Ridge Railroad.
The industrial history of the falls may actually predate the railroad. A historical and archaeological study prepared for the North Carolina Department of Transportation identifies the property as the “Fall Mill” and reports that a small sawmill was already there before members of the German settlement near Walhalla acquired the property. The Germans considered developing a much larger mill and invited prominent South Carolina industrialist William Gregg to inspect the site in 1854. Eventually, they established a black-powder mill there to supply the railroad project. Charleston Courier
That earlier sawmill is an important clue. Long before electric motors, falling water was a valuable power source. A creek descending sharply through the mountains could be diverted through a race, flume, or other water-control system and used to turn machinery. Issaqueena Falls was therefore more than a scenic waterfall. It represented a readily available source of mechanical energy.
By 1857, that energy was being used to manufacture explosives.

A Visitor Peered Inside the Powder Mill in 1857
One of the best descriptions comes from an extraordinary newspaper account published in March 1857. The writer traveled through Walhalla and Stumphouse Mountain while railroad construction was underway and visited the powder mill.
Visitors apparently were not simply allowed to wander inside, which is understandable considering what was being manufactured there. The writer said there was “no admittance” to the establishment. He was, however, permitted to approach the building and look through a glass window at the machinery.
What he saw surprised him.
There was considerably more machinery involved in making powder than he had expected. He also noticed an important safety precaution. The workers wore copper tacks in their shoes, presumably to reduce the chance of a spark near combustible material.
Even more remarkable was the mill’s reported output. According to the visitor, only two workers were employed there, yet they were producing approximately 1,700 pounds of powder each week. Historic Newspapers

At roughly the same time, about 200 men were working day and night in shifts on Stumphouse Tunnel. They drilled holes into the mountain with hand tools, filled them with black powder, blasted the granite apart, removed the broken rock, and began again. The powder manufactured beside Issaqueena Falls was therefore feeding an enormous construction operation just a short distance away. Charleston Courier
The connection becomes even clearer in another contemporary description published later that year.
“Issaquena Fall Has Been Turned to Drive a Powder Mill”
On September 5, 1857, the Keowee Courier published a lengthy report on the progress of the Blue Ridge Railroad. The writer described how dramatically railroad construction had changed the area around Stumphouse Mountain.
The little cove near the eastern tunnel portal had previously been known for its isolation and wild appearance. By 1857, railroad shanties dotted the slopes. Clearings and garden plots were pushing into the surrounding woods. Cuts and embankments had altered the hills.
Then the writer provided perhaps the clearest contemporary description of what had happened at the waterfall: the water of Issaqueena Falls had been turned to power a powder mill. Historic Newspapers
This matters because it shows the connection between the waterfall and the mill was not merely geographical. The falls were actually providing power for the operation.
The same article called powder manufacturing one of the most important new industries created by the construction of the Blue Ridge Railroad. It reported that one powder mill had already been operating at Tunnel Hill for the previous year and that another mill near Pickens Court House was nearly complete. Keowee Courier Newspaper
That would place the Stumphouse operation by approximately 1856, although the precise construction date remains uncertain.
It also gives us a much different picture of Issaqueena Falls. Instead of hearing only falling water and birds, a visitor in the 1850s would have encountered railroad workers, machinery, shanties, cleared land, roads, and the nearby sounds of drilling and blasting.

John A. Wagener and the Walhalla Connection
The powder mill is generally credited to John Andreas Wagener, a leading figure behind the German settlement that created Walhalla. Later historical documentation also links Wagener to establishing the black-powder operation associated with Issaqueena Falls. North Carolina Department of Cultural Resources
The location made considerable sense. Walhalla was only a few miles away, the Blue Ridge Railroad represented a potentially enormous economic opportunity, Stumphouse Tunnel required large quantities of explosives, and Issaqueena Creek provided water power.
The powder mill was therefore part of a much larger transformation occurring in the mountains during the 1850s. The railroad created the community of Tunnel Hill, brought hundreds of workers into the area, and stimulated businesses and industries that probably would not otherwise have existed there.
For a few years, Stumphouse Mountain was anything but remote.
The Powder Mill Apparently Exploded
Black-powder manufacturing was inherently dangerous, and the Issaqueena operation appears not to have escaped that danger.
The Oconee History Museum notes that contemporary Keowee Courier reports included an explosion at the powder mill among the accidents associated with the Stumphouse railroad works. Oconee History Museum
That statement is significant, but there is an important limitation. I have not yet located the original newspaper report describing that particular explosion well enough to establish its date, damage, or casualties with confidence. Until we identify that original account, it would be easy to turn a documented explosion into a much larger story than the surviving evidence supports.
What we can establish is even more interesting: whatever happened in that explosion, it did not permanently end powder production at Issaqueena Falls.
The mill appears again afterward.

The Railroad Failed, but the Powder Mill Did Not Immediately Close
Work on the Blue Ridge Railroad collapsed around 1859 after South Carolina declined to continue providing the enormous amount of money necessary to push the railroad through the mountains.
Tunnel construction stopped.
The community above it began to decline.
It would be reasonable to assume that the powder mill disappeared with the railroad project it had been built to supply.
But it did not.
That is one of the most important discoveries in following the mill through contemporary records.
By the opening months of the Civil War, the powder mill at Stumphouse was apparently still operating.
The Mill Was Still Operating in May 1861
On May 18, 1861, only weeks after Confederate artillery fired on Fort Sumter, the Charleston Courier published a letter answering a question about whether South Carolina possessed any powder mills.
The writer said two good powder mills operated in Pickens District.
One was the Stumphouse mill.
According to the account, Major Wagener built the mill and then sold it to J. Martin Ottendorff. The writer specifically stated that Ottendorff was then carrying on the business. He described the mill as being approximately four miles west of Walhalla and immediately at the eastern entrance of Stumphouse Tunnel. Charleston Courier
This account changes the story considerably.
The Stumphouse powder mill had survived the collapse of railroad construction. More than a year after the tunnel project had effectively ended, someone was still manufacturing powder beside Issaqueena Falls.
The writer also described the mill as capable of producing a substantial quantity of powder each day. Even more intriguing, he said the two Pickens District mills were prepared to manufacture large quantities if sufficient demand existed. Charleston Courier
The date makes that statement especially interesting. This was May 1861. South Carolina had seceded in December 1860, Fort Sumter had been bombarded the previous month, and the Civil War was underway.
There is evidence that the two small Pickens District mills were among the very limited powder-manufacturing facilities available in the South at the beginning of the conflict. A historical study of Confederate saltpeter production likewise describes two small South Carolina powder mills in Pickens District at the beginning of the war. Digital Library of Georgia
But an important distinction exists between possibility and proof.
So far, I have not found documentation demonstrating that the Issaqueena Falls mill received a major Confederate government contract or became a significant supplier to the Confederate Army. The timing makes the question worth investigating, but the surviving evidence should not be stretched beyond what it actually tells us.
Was the Mill at the Top or Bottom of Issaqueena Falls?
This may be the most interesting geographical mystery surrounding the mill.
Modern historical descriptions frequently say Wagener’s powder mill stood at the base of Issaqueena Falls. The Oconee History Museum uses that description, as does the historical marker at Stumphouse Mountain. Oconee History Museum
The contemporary 1861 account says something different.
The writer placed the mill “at the top” of Issaqueena Falls. Charleston Courier
Because that account was written while the mill was operating, it deserves considerable weight.
However, the two descriptions are not necessarily irreconcilable.
A water-powered mill was a system, not simply a single building. Water might be captured upstream or near the top of a drop, directed through a race or flume, used to power machinery farther downhill, and then discharged through a tailrace. Different observers could therefore associate the same operation with different points along the waterfall.
The 1857 Keowee Courier account provides another clue. Instead of merely saying the mill was beside the waterfall, the writer explained that Issaqueena Falls had been “turned to drive a powder mill.” Keowee Courier, 5 Sept 1857 strongly suggests some form of water diversion or control system.
Finding evidence of that system may eventually be more useful than searching for the footprint of one building.
Could Anything Still Remain?
That question is much harder to answer.
More than 160 years have passed since the last operating reference I have been able to verify. Wooden buildings could disappear almost completely in that time. Floods, erosion, falling trees, later road construction, recreational development, and simple decay could substantially alter a small industrial site.
Stonework is different.
A mill site might leave behind retaining walls, foundation stones, channels, dams, abutments, or changes to the creek that survive long after its buildings vanish. The fact that a sawmill apparently occupied the property before the powder mill makes interpretation even more difficult because any surviving stonework would still need to be dated and connected to a particular operation. North Carolina Department of Cultural Resources
Stone features still exist around Issaqueena Creek today, but without archaeological or documentary evidence, it would be irresponsible to identify one as part of Wagener’s powder mill simply because it looks old.
That is where this story remains unfinished.
Historic maps, property plats, archaeological records, and a careful comparison with the terrain around the falls may eventually reveal more precise evidence of the mill’s location. The disagreement between “top” and “base” also gives us a specific question to test rather than simply wandering the creek looking for ruins.
So What Happened to the Issaqueena Powder Mill?
For now, the most accurate answer is that we do not completely know.
We know a powder mill was operating at Stumphouse by the mid-1850s. We know Issaqueena Falls powered it. An eyewitness who looked through its window in 1857 reported that only two workers manufactured about 1,700 pounds of powder each week. Historic Newspapers
Another 1857 account described the waterfall itself as having been diverted to drive the mill and called powder manufacturing an important new industry created by the railroad. Historic Newspapers
We know Wagener eventually sold the operation to J. Martin Ottendorff. Most importantly, on May 18, 1861, a contemporary newspaper still described Ottendorff as operating the mill and the facility as capable of producing substantial quantities of powder. Latin American Studies
And then the historical trail becomes much quieter.
That silence should not be converted into a convenient ending. We cannot yet say that the mill closed in 1861, that it was destroyed during the Civil War, that another explosion ended it or that it was dismantled. Any of those possibilities would require evidence.
For now, May 1861 is simply the last clear operating reference we have identified.
Looking at Issaqueena Falls Differently
Today, Issaqueena Falls is remembered primarily for its natural beauty and the story of the woman whose name it carries. We have explored that much different side of the waterfall in The Legend of Issaqueena. The legend and the powder mill occupy completely different layers of the area’s history, but together they show how much has happened around one relatively small mountain waterfall.
Stand near Issaqueena Falls today, and it is difficult to reconstruct the scene described in 1857. The forest has returned. The railroad shanties are gone. Tunnel Hill has almost entirely disappeared. The unfinished tunnel remains, but the industrial landscape that surrounded it has largely vanished.
Yet the waterfall is still there.
In the 1850s, some of that falling water was captured and put to work. It powered machinery that produced the explosives workers used to drill into Stumphouse Mountain. The powder traveled only a short distance before workers packed it into holes in the granite, ignited it, and used it to push an ambitious railroad a few more feet through the Blue Ridge.
The railroad never made it through the mountain. Tunnel Hill eventually disappeared into the forest. And somewhere along the way, the powder mill disappeared too.
Stumphouse Tunnel survived because it was carved into stone. Issaqueena Falls survived because the water kept flowing.
The little factory that once connected the two is the part we have almost forgotten.
Sources and Further Reading
The strongest contemporary sources for this story are the March 18, 1857 eyewitness account describing a visit to the powder mill, the September 5, 1857 Keowee Courier report on the Blue Ridge Railroad, and the May 18, 1861 Charleston Courier account documenting the mill after the railroad project had failed. Historic Newspapers
Additional historical context comes from archaeological and historical studies documenting the earlier Fall Mill property and sawmill, as well as the Oconee History Museum’s history of the Blue Ridge Railroad era.
