It really depends what level of detail is available for your area, and there is no obvious method to determining it. I'm lucky, both my hunting areas in NS and in SK, despite being very remote, have the super-zoom level of detail (as my Dad incredulously remarked, "you can count the bales in the field"). This is great. A few miles in away it's not zoomed in like that and next to useless for hunting purposes.
Download it and find out...or better yet go over to a friend's house who has it downloaded and see what level of detail is available for your area.
I down loaded it and it is nice to see kind of an overview of my hunting area, but it don't zoom in close enough to really see much or be a whole lot of good. Cant hardly tell the diff. between hardwood and softwood, just kind of go by lighter being hardwoods and darker being softwoods:](*,) grrrrr..... now what ....lol
Moose calling can get confusing to some, but cow calling is your main tool when moose hunting. If you go out and buy moose calls I would say you're wasting your money unless it is the birch bark cone. I find most store bought moose calls sounding worse than puffing a grunt your hands to make the call. You can roll up a piece of birch bark in a cone shape to use as a call and spend your money on a video that teaches you the basics of a cow call. A milk jug or a coffee can with a hole and a rope...