Sean,Irene did the same thing in some of my hunting spots.The whole upper half of a white oak borke off and fell right on the main trail in front of my favorite stand.Spent a good part of a day clearing it out.Killed a 144" and the buck in my avatar outta that tree,so I wanna keep that trail open.
I stump shoot my bow hunting areas and do a lot of scouting while I am.Late Winter-Early Spring seems best as things haven't greened up yet and the woods are a bare blueprint.Rubs,scrapes,trails,bedding areas etc. are all easier to spot.The more time you spend looking over your property and paying attention the more you will learn how the deer use it.