There is nothing more obvious on Turtle Island...

...than "Aesthetic Farm Maintenance."

https://pahistoricpreservation.com/finding-meaning-stone/

In my experience, in the Nonnewaug Cluster, a boulder is used for a carapace:

Allen or "Turtle Rock"in Alabama:

A Boulder and Stacked Stones Variation:

http://wakinguponturtleisland.blogspot.com/2014/05/scuppo-rd-box-turtle-surprise.html

https://wakinguponturtleisland.blogspot.com/2015/12/arguing-with-my-hero.html

Turtles in my Logo

Some of the turtles I neglected to photograph do appear in drawings. There are many "Turtle Specific" specimens in (an imaginary) stone circle in this drawing.

At 2 O'Clock is the spotted turtle, at 4 a snapper or a stinkpot or something, etc...