Mountains in general are good for getting away with murder. Climb up with a single companion. Push her off. Unless you are on video at the time, there is no way for a court to prove that it wasn't an accident. It doesn't matter what your relations were with the person, or if you owed her money, or if you stand to inherit a fortune from her, our legal system requires that you prove murder. If you can't prove it, no conviction.

Another murderer's friend is the ocean cruise. Stand by the rail late at night with your companion and when nobody is looking push her over the side. Wait a few minutes to see if anyone notices her body in the water. She can be already dead, which prevents her from crying out. Then sound the alarm and look distraught. Or just go back to bed. Thousands of murderers have gotten away with their crimes in this way. "I don't know, detective, I guess she must have awoken in the middle of the night and gone up on deck to get some of that good old fresh sea air."

It should be renamed 'Clinton County'

That site is terrible. Here's an archive.

https://web.archive.org/web/20170921172516/http://topconspiracies.com/there-s-a-section-of-yellowstone-where-you-can-get-away-with-murder-617.html