You can get some great maps from the county clerks office Mo. I love new satalite photos, they are great place to start. One thing I really check is what is around me. If the placeI have is 10 acers but sits next to a gold mine then you mayhave a great spot. All it takes is 5 acers to have have a honey hole. If it is the right 5 acers. I tend to look for those 5-20 acer parcles. most of the time they are over looked!!