Its time to invest in a couple trail cams. The 35mm's are pretty cheap now.

These will go a long way in showing you what is there.

Although deer's patterns start changing early in the fall as food sources change, the cameras might give you an idea of where they hang out and when for the early part of the season.

Being I'm from SW PA, maybe you could show me the property and I'll help you figure them out.[8D]