that is the St. Mary's entrance, if you keep following that road for 1/4 mile(to the right in the pic) you will cross over the St, Mary's river right where it feeds into St. Mary's Lake. We used to catch a ton of whitefish right at the mouth of the river. It is very wadeable and easy access. FYI, going to the sun rd. where it runs along St. Mary's lake is where they filmed some of the scenes in Forest Gump when he goes on his long run. It's also the opening scene in the Shining. Just a few facts I picked up workin' the front Desk @ St. Mary's Lodge.