'Snake Road' Closes Today in Shawnee Forest

It's a sure sign of spring in southern Illinois... and fall, for that matter. 

Twice a year, a two-and-a-half mile stretch of LaRue "Snake" Road in the Shawnee National Forest is closed to vehicle traffic during the migration of thousands of reptiles and amphibians.  

Beginning Thursday through May 15, only hikers may use the road to observe up to 35 species of snakes as they travel from their winter hibernation in the limestone bluffs to a nearby swamp. Of course, the snakes aren't reading a calendar; their decision to move is based on ground temperature.

Some varieties are scarce or endangered, like the Mississippi green water snake. That's one of the reasons wildlife officials began closing the road in 1972, when large numbers of animals were being killed by passing vehicles.

Along with the snakes, turtles, salamanders, newts and skinks, hundreds of other animals make their homes in the Shawnee Forest. Sharp-eyed snake watchers may also spot a bobcat, bald eagle, golden mouse, spring cavefish or indigo bunting.

The fall migration closure will be repeated September 1 to October 30.