Hidden Base in South Pole? Not on any maps. Wonder who it belongs to

you can see the plane runway and where some buildings are greyed out. I tried to mark them with some arrows in ms paint.

Interestingly enough, Admiral Byrd's expedition was around this area I believe. His vehicle he brought had a range of about 500 miles. This is about 550 from the coast. Idk if his vehicle ever worked but interesting to think about.