Those sign in boxes get hammered. Good luck on those places!!I found that sending for the BMA access guide is a big help. It list all BMA land and what type. Type 1 has a sign in box, just sign and go hunt, type 2 you have to get a slip from land owner/manager and may have limits or restrictions. I also suggest a hunt app such as ONXMAPS it is a HUGE asset to find new areas and you can see vegetation and topography.