Park Rd. by CT Trail (Watertown CT)

Obviously a turtle:

Also a Serpent:

(I've been taking note of a sometimes repeated pattern of a flat slab directly behind the head-like stone, as well as the two double smaller cobbles also sometimes found behind the snake-like head-like stone - and here's both!)

Maybe the turtle is also a single backward pointing single horn?

Where did I just see that??

Here it is:

http://wakinguponturtleisland.blogspot.com/2016/08/a-coiled-snakes-and-snakes-coils.html