Nothing there! No Sign, Not An Address

We tried to find this campground via the navigation on app. Nothing in view when it said we had arrived. We turned around TWICE on MT 200, a two lane highway looking for any sign or park. Not easy with a 40' trailer. I'm attaching a photo of where a local man said the rv park was... What?!  This app. has a wrong address listed!! Here is the correct address for Hilltop.. 813 North Broadway Winnett, MT 59087 Here is an option for staying in Winnett that is quiet and has water and 50 amp electric hookups! Motel & RV Park, 308 E. Wheeler. We stayed connected with a total length of 50'.