MsVicki, I am glad you were watched out for.
I hope you will also reconsider the relative safety of your own woods. Private property is not necessarily any more safe than public lands, what with the spread of gangs or meth labs. Back when I owned a modest amount of forest land, I came to realize that I could "disappear" out there as easily as anywhere else, if I ran afoul of violent criminals.
What to do then? Live in awareness, not fear, on your land and everywhere else. Be prepared - physically and mentally - to harm some miscreant rather than let him harm you. That's what these posts so far are trying to say. Once you cross that line where you would rather cause hurt than be hurt, you are truly ready to learn about self defense.
Look up 'Police Equipment' in the Yellow Pages; I have found that type of shop to be more professionally operated than most gun shops. They will have a good selection of effective sprays. And do take a hands-on class in how to use them effectively. Practice the way it will go down for real, get good at it, and when it goes down for real you will do as well as you did in practice.
You did the right thing, calling the cops. I'm really glad you're OK. I hope you will now take the next step and take it vigorously.
Protecting the environment is important - start by protecting your own.