I will have to come up with rules

No need for that. The rules have already been set and are in Wiki. It makes it consistent and easy for everyone. No need for participants to search for an old post -- just check Wiki. :)

Have fun! I have pathtags in 3 different states now. And my husband has promised a trip to Alaska for our 25th anniversary in a few years so maybe I'll have one from there too some day. :)