WOGE #504

I was able to guess the location of Ole's WOGE 503 quickly, thanks to the tropical vegetation and the river that disappeared and reappeared near the center of the image. For this edition I will give another (I think) easy challenge, so the Schott rule is in effect.

As always, be the first post a comment with the location and something about its geologic significance, and you win the privilege of hosting the next Where on Google Earth challenge. For rules, tips, and a list of past locations, see Felix Bossert's blog.