So, I have been back to studying all the great maps that Forager, FindHG, and others have been working so diligently on. I'm a map gal, I get the most theories and insights from looking at maps. We all have our thing. ; )
And I just had a bit of a wing ding, because I believe it was dmc who is fixated on the railroad tracks, and I've been fixated on the area directly across from the Carlton Glenn golf course, across from 275. I was drilling down on Foragers terrific map, and realized that Carleton Rockwood road splits off in two directions just before 275; and one direction (to the right) becomes that frontage road that I am so interested in. The frontage road goes past swampy bodies of water, swan creek, and *train tracks*. If I'm looking at the map correctly, the train tracks go right under 275. This frontage road is between Carleton Rockwood and Will Carleton. Both lead right to Flatrock. If you look at this from an aerial map, it's highly accessible, provides quick departure, and hiding grounds. If we have a person of interest tied to the golf course or if there are hunting grounds in that area, then I'd really have a wing ding.
Big caveat here is this is all amateur speculation based on aerial views. She could be anywhere, and I'm sure LE is well on that trail.