One thing I have learned over the years of treasure hunting is research. I have had to teach myself on using BLM maps and locations by the use of plat surveys. Its free to use and you can get within yards of places you are looking for. They also show roads and trails which are defunct or over grown now. There are east and west median lines and north and south lines. The only cons about it is they don’t have all the states which makes it a little more difficult. Depending on the age of the state they can go back to the early 1800’s or earlier. Some county names changed and you have to research those as well.