Hi Cynthia,
If you are willing to drive a little, there's Cooper's Rock WV - friends of ours had a beautiful outdoor wedding there last year (vows at the breath taking overlook) with a reception to follow in a gorgeous stone & wood pavilion (fireplace & candle light was all the decor the pavilion really needed). They were on a budget, too, and both big fans of the outdoors. Their families brought the food as well. The bride-to-be walked out into the clearing from the trees and my daughter thought she was seeing a princess from a fairytale!
If you can rent one of the pavilions still, this may be an option for you. I've attached a link to the website I found. Good luck and congratulations to you & your daughter on her upcoming nuptials!
http://www.coopersrockstateforest.com/
Best wishes,
Jennifer