Most wells at Cape Station are between 8,000 and 9,000 feet deep, and the deepest one extends a mind-blowing 15,000 feet below the surface. That is about the depth you'd get to if you stacked 50 Statues of Liberty on top of each other!
For those who prefer a less American-centric metric: 8,000–9,000 feet is approximately 2.5 kilometers. 15,000 feet is about 4.5 kilometers — roughly the height of 14 Eiffel Towers stacked on top of each other!
https://abcnews.go.com/US/mystery-object-hits-united-airline...
https://www.financialexpress.com/world-news/us-news/injured-...