This dike, maybe 10 feet (3 m) high and 15 feet (4.5 m) across separates 2 of the old rice fields/marshes. Dikes like these are all through the Lowcountry.

They can also be like wildlife highways at times. Birds, deer and hogs use them to walk all through the area. Alligators climb up one side and down the other moving between wetlands.

Parts of the dike are worn to mud from the large number of Alligators moving around. These trails are good though since we know where to look when walking on them ourselves.
In these photographs you can see how high the grasses grow. it’s always ‘interesting’ when you suddenly hear a huge splash off to the side. Those are the Alligator belly-flops from jumping away from us.

Sounds like what we would call a berm. I like that very apt expression ‘wildlife highway’ ☺️
It’s the big tooth guys that make these interesting.