I have just received an 1800's map of one of the counties in my state and have been trying to figure out how to tie in this map with a new county map and find everything with my GPS. Have been sitting here for over an hour reading all the postings from everyone and now I think I can find everything I need to find the old houses and schools on the old map. Just wanted to thank you for taking time to help us GPS 101 dummies. If I have any problems you will hear from me. For right now everything is clear as mud but clearing up fast.