I think what got 202 wasn't an ordinary sinkhole but a limestone fault -- basically a huge mucking crack in the bedrock, like a cave only filled with soil. Put any weight on it, or disturb it too much, and the soil moves out, creating sinkholes.

There certainly are plenty of ordinary sinkholes in the area -- N. Gulph Road had a number of them caused by an underground stream, and the K.O.P mall has had them appear in it's parking lot.

If you remember the movie "Contact" with Jodi Foster, their were several scenes in the first half filmed at the huge radio telescope in Puerto Rico, Observatorio de Arecibo. A quote from their website says:

"Hidden among fields and hills is the world's largest radar-radio telescope, operated by the National Astronomy and Ionosphere Center of Cornell University. A 20-acre dish, with a 600-ton suspended platform hovering eerily over it, lies in a 563-ft-deep sinkhole in the karst landscape. The observatory has been used to look for extraterrestrial life. Hidden among fields and hills is the world's largest radar-radio telescope, operated by the National Astronomy and Ionosphere Center of Cornell University. A 20-acre dish, with a 600-ton suspended platform hovering eerily over it, lies in a 563-ft-deep sinkhole in the karst landscape. The observatory has been used to look for extraterrestrial life."

well, I'll try a gif

Hey! Isn't that the radiotelescope that was used in that James Bond movie? The one that was supposedly in Cuba? Goldeneye I think?

Brian

Yup. Was also in "Contact".

Contact.....God that film sucked

No, Jim. I have/had the clip on my computer but as it was quite awhile ago, it may not have been this computer. I'll have to look for it.