Williamson County Officials Block Cave From Trespassers

WILLIAMSON COUNTY, TX — Williamson County officials have added security measures preventing access to a recently discovered underground cave after evidence of trespassing was confirmed.

The cave in question is underneath a stretch of Cambria Drive, which was only discovered after a portion of the roadway collapsed to expose the underground formation. The street collapse happened in the early morning hours at the Woods of Brushy Creek neighborhood situated between Highway 183 and Cedar Park on the west and Interstate 35 and Round Rock to the east.

Since making its presence known, the cave has been the subject of residents' fascination. But last week, a person or persons breached the entry to investigate it for themselves — a dangerous adventure given ongoing efforts to stabilize the cave to prevent further collapse. A water line leak slowly corroded the roof of the cave drop by drop for an unknown period of time, ultimately leading to its collapse.

"Entering the cave is both illegal and dangerous," officials said in a press advisory. "Additionally, our concern is that trespassers also may place others at risk if first responders are required for any rescue efforts."

Previous efforts to fortify the natural structure included re-establishing the barricades and building a more secure hatch and lock. In light of the confirmed evidence of trespassing last week, county officials also have asked that the sheriff’s office increase patrols in the area to deter violators.

"We greatly appreciate the public’s help in keeping us notified about any changes or issues at the cave and respecting our barricades that are in place to keep the area safe and secure," officials said.

This week, officials said, the county had a preliminary meeting with the Texas Commission on Environmental Quality (TCEQ) to discuss remediation options. The options centered around different alternatives on how to close the cave entrance and what type of materials and techniques that involved, officials added.

"They are reviewing the options and stated they are most concerned with water quality in their review," officials said. "We anticipate this will take about two weeks, and then we might have a preferred option to present."

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>>> Photo of Cambria Drive cave courtesy of Williamson County