(AP) — You don't have to be a herpetologist to savor the slice of this federal forest where a stunning array of reptiles and amphibians congregate beneath soaring limestone bluffs overlooking the Mississippi River. Whether trained zoologist or weekend hiker — or in my case, someone with a lifelong aversion to the scaly creatures after a frightening childhood encounter on family trip to Florida — a visit to the place locals call Snake Road offers a glance of biological diversity worth the 100-mile (160-kilometer) detour from St.