Description:Â Pine snakes are large, fairly heavy-bodied snakes that average 48-66 inches (122-168 cm). The ground color of pine snakes may be white, yellow, or light gray. There are usually dark, squarish, blotches on the sides and back that are lighter toward the tail and darker near the head. The belly is white with dark spots on the sides. Pine snakes also have a relatively small head compared to other large colubrids and have a snout that is somewhat pointed .