https://www.studycountry.com/wiki/how-deep-is-the-bottomless-pit-in-mammoth-cave
How deep is the bottomless pit in Mammoth Cave?
One of these features is the Bottomless Pit, situated just beyond the rockfall known as Giant's Coffin. This pit has a depth of about 105 feet. Directly above
the bottomless pitdeepmammothcave
https://thestandupphilosophers.co.uk/capitalism-and-the-bottomless-pit-of-satisfaction-exploring-consumer-culture-through-schopenhauers-lens/
Capitalism and the Bottomless Pit of Satisfaction: Exploring Consumer Culture through...
the bottomless pitconsumer culturecapitalism