I've been lurking in this thread for three days while I waited for approval but after begging a moderator, here I am...
I live near Montpelier, my husband works there. To answer a question from several days ago, Montpelier has plenty of fliers up. Randolph is about 20 miles from here...
One of the reasons it makes sense to search fields as opposed to a wooded area right now is because of the weather - we have had rain almost every day for several weeks... Not a lot but enough to prevent local farmers from haying their fields and the grass in those fields has gotten very tall. It could be conceivable possible to miss a body even with aerial searches.
I certainly do hope they find this young lady safe and sound...