Here are photos I took while exploring a massive mine system located under St. Paul, MN. I imagine most locals have no idea that there is a 2 mile long tunnel system with 50′ ceilings right under their neighborhood. After 3 failed attempts to enter, we finally had a successful venture into the abyss. 100 candles were lit to illuminate the massive triangular tunnel chamber.
A headlamp was used to light up the crevice that allows one to climb up this incline. I sat there manning my tripod-mounted Canon 6D with long exposures while my photo friend ran up and down the subterranean cliff.
Ghostly image of a fellow adventurer.