MadMooner- yes iphone, the app is Gaiagps- its the reason I finally went to a smart phone, full GPS capabilities- you simply decide on the scale of the topo map (I use 24k:1) and then how much area- name it, save it and if that's the area you're going to hunt, load it into the main map. No cell phone reception required- it's all satellite. You can get a pin point of where you are at, or do a track. With the track your get all the stats, like above.
I can track a full day and still have 50% battery life remaining. Phone needs to be in airplane mode-all cell and wifi shut off. For multi day trips, I don't use the tracking feature (just the pinpoint feature) and I can get 3-4 days of use (that usually includes lots of map looking and photos)
