This road is probably most famous for the biennial “Snake Migration”. The road is closed to vehicular traffic from March 15th – May 15th and Sept 1st – Oct 30th to help protect thousands of reptiles and amphibians during their migration between their summer and winter habitats. You are welcome to travel the road by foot or by non-motorized methods during these closed periods. About 66% of the amphibians and 59% of the reptiles known to occur in Illinois are found here. Approximately 35 species of snakes reside here, only 3 of which are poisonous. However, always use caution as any snake will bite. Avoid being bitten by slowly moving away. This is a Research Natural Area. Collection of any kind is prohibited. Snake Road is currently open. For questions or more information please call 618-833-8576.