Building a snake hibernaculum

In my last post, I mentioned that one way to encourage snakes on your property is to build a hibernation den. Naturally the question followed: how does one go about doing that? Personally, I have no idea, but here are a couple of pages about building a snake hibernaculum: this one from the Toronto Zoo’s Adopt-a-Pond program; and this one from Respect the Snake, a website about conserving the Lake Erie Water Snake.