For years, there has been speculation about the unique pattern visible in the rocks beneath the bridge at the red light in Webster Springs. Some theories that have been floated were the possibility of an ancient road system or that stone for the courthouse house was harvested from the river, while others have wondered if the grid-like pattern was a natural occurrence.
What seems most likely, however, is that this feature is a geological formation known as tessellated pavement. This type of phenomenon is associated more often with coastal regions. However, by appearances, it seemed that it could be present here in the Elk River.
Thanks to expert analysis from Dr. Jaime Toro, professor of Structural Geology and Tectonics at West Virginia University, it is confirmed that the interestingly shaped rocks in Webster Springs are indeed tessellated pavement. Dr. Toro noted, “It is rare to see such a well-exposed example in our part of the world. I could use it as an example in my class.”
Dr. Toro explained that these formations, though mesmerizing looking, result from a common geological process involving joints, which are tensional cracks that form in rocks due to applied stress. “These joints are a result of forces during regional deformation. You can think of them as a result of the same forces that caused the folding of the rocks that created the Appalachians. That means that they are quite ancient in our case. They must be more than 250 million years old! Interestingly, the ones at Webster Springs do not have the classical orientation. They are far enough from the mountain front that they must be controlled by some more local disturbance to the stress field,” he further elaborated.
A well-known example of tessellated pavement is found at Eaglehawk Neck in Tasmania, which draws visitors from all over to witness its natural beauty. Similarly, the tessellated pavement in Webster Springs, now confirmed by experts, could attract both locals and tourists interested in seeing the phenomena of stones that appear to have been crafted by human hands.
The unusual pattern in the Elk River offers a glimpse into the forces that shaped our beautiful mountains and rivers millions of years ago and adds to Webster County another recognized and intriguing feature to appreciate.