Israel’s Moshe Frei, was trekking Mount Everest with three friends when he completed the Menachot tractate at Everest Base Camp at an altitude of 5,364 meters (17,598 feet). “The timing was right, and it was a great place,” Frei told JNS from Nepal.

https://www.jns.org/news/jewish-life/talmudic-tractate-completed-on-mount-everest