Maine has a famously rock-bound coastline. Stonington is rock-bound to the nth degree — which is presumably how it got its name. Most of the rock is granite, and you see outcroppings sticking out of pretty much every bay, inlet, and yard. It’s everywhere.
Our cottage has a beautifully made foundation consisting entirely of fitted granite blocks. Visitors who’ve seen it nod approvingly and say: “That’s Crotch Island granite.” Crotch Island is located near Stonington, and the quarries there supplied the granite for most of the foundations, fences, and walls in town. It’s good granite, obviously — but why did it have to be called Crotch Island?