A scene from Great Saltpeter Cave Preserve. This cave was mined for saltpeter (potassium nitrate), a component of gunpowder, from 1805 through the Civil War. Many wooden mining artifacts are preserved in the cave, including wooden plumbing! Hollowed logs transported water that was used to leach the mineral from the cave dirt.
Nikon D-80, 18-135 Nikkor at 18mm. 8 second exposure using the commercial lighting system.
Nikon D-80, 18-135 Nikkor at 18mm. 8 second exposure using the commercial lighting system.
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