I was really interested in Dark Mountain (2013), right up until the third act lost its rhythm a little bit. There's some interesting film-making here, in addition to a small (but capable) cast that has believable chemistry on camera.
The real star here is the Superstition Mountains in Arizona. The repetition of dirt and rocks (Paul has a memorable freak-out moment about those same rocks and dirt late in the film) is dizzying, and there's a delicious aura of menace as the trio moves deeper into the mystic unknown.
The search for the Lost Dutchman Mine is a nice piece of Western lore, and one that made me look deeper into the film's central plot carrot. There is definitely a lot of documented unhappiness up in those hills, and some of that sorrow and madness comes across nicely in this found-footage piece.
Sure, it doesn't quite pay off the investment in those final scenes, but I really think it's much better than the unforgiving appraisals I've noticed online. I'll definitely look for more by Tara Anaise, and Howard, Simpson, and Stehlin delivered fine performances in this low-budget thriller.