Many mapping programs will have layers you can pull import off the web or out of their library. You just need to know what are the types of land designations that cause a withdrawal. Most all withdrawals will save existing rights but some times if the agency want the land you have they will try to settle with you or as a 2nd will do a validity exam which is a very costly and time consuming project with no complete guarantee of success or of no appeal 9more time and cost).