Does the whitetail tag allow me to hunt anywhere in Idaho? Or do I claim a zone and can only harvest in that said zone?
No, you can hunt for whitetails in mulitiple big game management units and are NOT restricted to zones like elk hunters are. So, yes you can hunt whitetails in say Unit 19A from Oct 10 - Oct 31 and if you are unsuccessful, you can hunt whitetails in Unit 11 from Oct 10 - Dec 1. Your whitetail deer tag is valid for whitetail deer only, for any hunt listed under "2013 Whitetail Deer Tag Seasons" on pages 21-24 of the 2013 Big Game Seasons and Rules booklet.