Never heard it called Apollo ridge. But yes north of Gatlinburg
It's actually south-southeast of Gatlinburg. If you are in the "Burg" and look toward the main mountain chain, Mt LeConte (3rd highest peak in the smokies) fills your view. Apollo Ridge is up on top at the end of the Alum Cave trail. Alum Cave is one of 5 trails that climb LeConte, its the shortest but very steep. This section is the last half mile after you get pretty much to the top. It is so flat it's a nice break after the climb. Great views on a clear day or night as well. Gatlinburg and Piegon Forge is just below the mountain. At the end of the trail is LeConte Lodge where you can rent a place in a small cabin, they also provide 2 meals at the lodge. We've done that trip by ourselves, but also with as many as 14 friends and family.
I've been on that trail at least a dozen times, but never saw it lite like that. Beautiful spot and that picture is tremendous.
Here is some more information on Mt. LeConte. Check out the pics they share.
http://www.highonleconte.com/
Here is a picture of me on one of our trips up there. Cold that morning.
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