The first image, Braswell says, is of the Laguna El Civalón, and the two rectangular features next to it are fields, probably either weed-filled fallow fields or marijuana fields based on the amount of vegetation.The feature in the second image is a dried-up swamp, though an interesting archaeological site lies just to the south.

Source : That Long-Lost Mayan City a Teen Found Isn’t Lost … or a City | WIRED