This is what I thought at first too, but as others have pointed out, there are lots of nearby mountains that block the horizon in the Himalayas. Here's a panor

This is what I thought at first too, but as others have pointed out, there are lots of nearby mountains that block the horizon in the Himalayas. Here's a panorama using the same tool the article uses: http://www.udeuschle.selfhost.pro/panoramas/panqueryfull.aspx?mode=newstandard&data=lon%3A86.925278%24%24%24lat%3A27.988056%24%24%24alt%3Aauto%24%24%24altcam%3A10%24%24%24hialt%3Atrue%24%24%24resolution%3A20%24%24%24azimut%3A180%24%24%24sweep%3A356.2%24%24%24leftbound%3A1.9%24%24%24rightbound%3A358.1%24%24%24split%3A60%24%24%24splitnr%3A6%24%24%24tilt%3A-4.375%24%24%24tiltsplit%3Afalse%24%24%24elexagg%3A1.2%24%24%24range%3A300%24%24%24colorcoding%3Afalse%24%24%24colorcodinglimit%3A130%24%24%24title%3AMount%20Everest%20%28Sagarmatha%2CQomolangma%2CChomolungma%29%24%24%24description%3A%24%24%24email%3A%24%24%24language%3Aen%24%24%24screenwidth%3A1472%24%24%24screenheight%3A828 http://www.udeuschle.selfhost.pro/panoramas/panqueryfull.asp... The furthest point from the top of Mt. Everest that you can see is 303km away, and it's tucked between two faraway mountains. Edit: I'm sorry, but this comment is wrong. I used the tool incorrectly. In fact, longest LOS from Everest is 8th on the list, and is 455km long. I assumed that when the tool auto-completed Everest it would give me the peak, but it did not.