I took this set from Crotched Mt. in Greenfield NH this past summer; again using my Pentax *ist DS and 28-80 mm Tamron lens. It was an amazing experience to show how much conditions can change in minutes, because before sunset, the view was barely worthy of a photo. At sunset, the magic spell was cast, and the view was spectacular. The tricky thing with taking this kind of photo, is finding the right balance of trees, sky, and mountains. You don't want too many trees because they don't do much in the way of color, but a couple in the corner give effect and just look great.
Add a hawk, and you have some real magic: