These are screen shots from Google Earth. At the top of this shot is the leaking pond. I’m at the bottom of the yellow line. It’s 10 1/2 miles .
Below is the area just north of Gibsonton. You can see the waste ponds on top of the mountains of tailings. Just to the west of this is MacDill AFB. See the islands, especially the one at the top. It has a mountain of tailings.
Here’s a blow-up. Just to give you an idea of scale, the mound at the top right is a mile and a half long, and it’s very high. At the bottom left is the phosphate plant.