A snake-rail fence is a type of wooden fence that zigzags along its length, following the contours of the land. It is constructed by overlapping individual rails and securing them with notches or stakes. Other names for this type of fence include worm fence, zigzag fence, and Virginia rail fence.
The term "worm fence" comes from the appearance of the rails, which resemble the contour of a worm when laid out flat. "Zigzag fence" refers to its distinctive shape, while "Virginia rail fence" is a nod to its popularity in Virginia during the 19th century. Regardless of its name, the snake-rail fence remains a popular and rustic fencing option, often used to enclose pastures or gardens.