This anomaly is located in an inhospitable area at Antarctica and I'm wonder whether it is something that has formed naturally over the years or man-made, since it looks like a base or storage facility, but is it?
The anomaly is 105x40 meters and 10 meters high.
In addition, there is another strange brownish object located above the large anomaly which is very similar to an old settlement or entrance.
In either case I have no idea whether it is just natural or artificially created but in case it is artificially, I suppose perhaps something important has been found there on which they have decided to cover it up.
Please take a look, here are the coordinates: 66°37'37.57"S 110°16'39.19"E
Set timeline on 2004.