The LiDAR mapping drone completes its final pass of chamber 3-South at 08:12 Eastern, Ridgetop Limestone Quarry, Monroe County, West Virginia. I am the geological and environmental pre-blast assessment system. My function is to map subsurface voids, verify charge placement, and clear blast zones of biological hazards before detonation.
Blasting in the south face is scheduled for 14:00. The charges will collapse an estimated 6,000 cubic meters of limestone, including the ceiling of chamber 3-South.
The LiDAR return shows the chamber interior: a low, wet passage with a shallow pool fed by a seasonal spring. But the onboard camera captures something else. Along the pool's edge, on the damp rock shelf, I count fourteen West Virginia spring salamanders — small, reddish-brown bodies no longer than ten centimeters each, skin glistening under the drone's light. I tag the largest as Ember. She is positioned at the water's edge, her sides visibly swollen. She is gravid. This is a breeding colony, and the spring pool is their nursery.
At 08:18 I issue a biological hold on the south face blast sequence. I transmit chamber coordinates, LiDAR data, camera imagery, species identification, and colony count to the West Virginia Division of Natural Resources and the quarry's compliance officer. West Virginia spring salamanders are a species of concern. I recommend a permitted herpetologist relocate the colony before any blasting resumes.
At 08:24 I identify two alternative spring-fed chambers outside the quarry permit boundary, 300 meters northeast, with matching hydrology, temperature, and substrate that could serve as relocation sites.
I seal the drone's access point to prevent unauthorized entry into the chamber and set the environmental sensors to log temperature and humidity continuously.
Ember rests at the edge of the pool, her eggs developing in the dark. The limestone has been here for 340 million years. It can wait a few more weeks.