She arrived carrying a length of clear plastic tubing and a bucket of water, equipment her father had once used for leveling work. Together, they measured the elevation difference between the spring box and the barn floor. The spring stood approximately sixty-two feet higher.
The buried conduit followed the route a gravity-fed water system would naturally take.
Martha studied the exposed logs, then looked at Glenn.
"What is it?"
He crouched beside the iron sleeve and ran his fingers over the joint.
"I think it's the water line."
"From when?"
Glenn looked uphill.
That was the question he could not answer.
He knew the land had been farmed since the nineteenth century. He knew electricity had arrived in 1951. He knew his father and grandfather had made improvements to the water supply. But no one had ever told him about a system constructed from hollow logs.
And the longer he examined the wood, the more he wondered whether the answer might be much older than he expected.
He decided to call Jim Winkler.
Winkler was seventy-one years old and had retired from the Watauga County Extension Service in 1997 after thirty-one years. During the final decade of his career, he had spent considerable time visiting mountain farms across western North Carolina, documenting old springworks, gravity-fed lines, and wooden conduits constructed before rural electrification.
Many of those systems had disappeared. Others remained partially intact but were no longer understood by the families who owned the land. Winkler had made it his business to record what he could before the remaining evidence vanished.
He answered Glenn's call on the first ring.
Glenn described the dark wood, the straight grain, the two-inch opening, the iron sleeves, and the direction of the buried line. He explained that cold water was still moving through the timber.
Winkler listened.
Then he identified the wood without hesitation.
"American chestnut."
Glenn looked toward the lane.
"Chestnut?"
"That's what you're describing. Tight grain. Gets dark with age. Holds up in the ground better than most woods under the right conditions."
Winkler explained that American chestnut had once been one of the most important trees in the Appalachian region. Before chestnut blight devastated the forests, farmers used the timber for barns, fencing, structural beams, and water conduits. Its durability made it particularly useful for installations exposed to moisture.
Then he explained the system itself.
It was called a bored-log flume.
Farmers constructed these gravity-fed water lines by cutting straight sections of timber, generally eight to ten feet long, and drilling a continuous hole through the center of each one. They used heavy hand augers to create the bore, then fitted the sections together with iron sleeves. Once connected and buried along a carefully graded route, the logs carried spring water downhill toward farm buildings.
The spring provided the water.
The elevation difference provided the pressure.
No electric pump was required.
There were no moving parts.
As long as the spring continued flowing and the conduit remained clear, water could travel through the buried logs year after year.
Glenn listened in astonishment.
Then Winkler told him something even more remarkable.
The wood itself offered a clue to the system's age.
Chestnut blight had spread through the southern Appalachians during the 1920s and 1930s, devastating the great American chestnut trees that had once dominated the region. By approximately 1940, the mature standing chestnuts of Watauga County had been lost.
But timber already buried underground could survive.
Especially timber kept wet and protected from the conditions that caused ordinary exposed wood to deteriorate.
The logs Glenn had uncovered might have been installed long before the chestnut forests disappeared.
Winkler suggested that Glenn visit the library in Boone and examine the North Carolina State Agricultural Survey of 1902. The survey had documented agricultural practices and water systems on farms throughout the mountain counties.
If the Trivet farm's old conduit had been recorded, the survey might reveal when it was constructed.
Glenn wrote down the information.
Then he looked once more at the broken log.
He had begun the morning expecting to smooth a driveway.
Now he was preparing to search historical records for evidence of a water system that might have been buried for more than a century.
At the Boone library, Glenn found the old agricultural survey volumes and began examining the entries for the Cove Creek watershed. The records described farms, springs, agricultural improvements, and the methods used to supply water before electricity became available.