I like to scout in winter because i can see whats hidden like highwalls old pounds logjams rockcliffs the true north places will be the last places snow will melt and land owners are much easier to talk to and the sooner you ask permission the better the odds the answer will be yes . I scout all thru the year thou and look at by patches alot to keep my eyes sharp . the most helpful thing is a good map also google earth can also be helpful
If you have a good GPS... you can mark the location of plants that you find while scouting.... and that may just pay off later.
3 or 4 years ago I did some scouting in June... and found several nice ones on some property that I own. I marked the location with my Garmin GPSmap 60CSx...
When I went back the first few days of seng season... we were having an awful drought that year and a lot of the woods greens were dead already... and what seng was there the deer were hitting it extra hard.
I found all of those plants that I marked with my GPS... and most of them had the top eaten and just a stem sticking up.
Not every GPS may be that accurate, but my Garmin put me spot on.
I am scouting heavily now while the woods aren't too thick and the temps aren't too high. The use of a GPS is an excellent idea. While you are scouting just log in your coordinates and this fall you can walk right up to your plants and start harvesting.