This series of bridge caches is located along Highway 17 East of Sault Ste. Marie, Ontario. Caches consist of screw-top, plastic jars varying in size from medium to small, usually without camo, containing log book, pencil and toy trade items. There is NO need to walk on any of the bridges or cross the highway. Please be careful of your footing as the terrain is steep when you leave the highway and approach the cache.