A preemptive posting this time, since although I solved Luis' WoGE #453 by accidentally looking at Dek Island in Tana Lake, Ethiopia, he hasn't confirmed it yet. But weekend starts very soon, and I expect to be very busy next week, so here it is:
I will only add that I have no idea how that thing ended up where it is!
A week later, a hint seems to be needed!
This is the same thing, looking due east:
Unlike glaciers, these things do not have a habit of forming on mountain tops.
Another week, another hint:
For any new players to Where on (Google) Earth, simply post a comment with latitude and longitude and write something about the (geologic/geographic/hydrographic) feature in the picture. If you win, you get to host the next one. Previous WoGEs are collected by Felix on his blog and a KML file.