Does anyone know of a website showing the location of campsites?

I can only find sites that state parks are the most larger and better known. I am looking for a site that has a map of all the campsites (will be used for mn) to the abstract is not so popular. Can anyone help?

We had to try Google Maps? You can search and see many parts of the satellite image. Just type the name in the location in the search box Google will display! Visit Google Maps here;

I can camp! Minnesota State Parks & Trails