I use Google Earth alot at home. I also downloaded it on my iphone and used it in the field while hunting this year.

We just got back from a hunt in Montana and the guide had a really great feature on his GPS. He owns huntinggpsmaps.com and he has chips for GPS units that show the land you are on as well as the property lines to point out private from public land etc. It's a really neat product and a couple other guides in camp were using it and loved it. I believe he combines land maps with Google earth and this tool is something already developed you can use.

He was using the GPS to track our way points, but he could also check at a moments notice what the land looked like and where we were in conjuction to other landowners property. I could see it being a very useful tool for guys who hunt public land out west.

google earth is really quite the tool,helps me find new spots

satelite maps are great for initial overall view of an area.
but do find they lack lots of detail,
cant tell density,
marsh/wetlands look like open fields,
cant tell whats passible or not,
sat maps are great , but can only work in conjuction with on the ground scouting.

I have a couple of video's showing you how to use GE on Youtube. You can view them at http://www.youtube.com/americanbwana

I also have some Colorado KML files available (free) at http://gmuresearch.com/kml

GE is a great program.

If I get permission to a new spot, I will google earth it to check it out. Very helpful I do believe. Although I've only done it twice.............

I had to use topographical maps to do that decades ago.

topo map and compass with my dad

My buddy and I used google maps for our first elk hunt this past year. We have never been to the area and never been elk hunting. We used good maps and identified 3 drainages that we liked. There was one that we just new had to be good. We nailed it- we didn't get an elk but we saw elk every day and worked one for a while until my buddy scared it with some serious grunts.