When she arrives at the trail parking lot, Lue's dash-cam says it's before 6:00 a.m. but the shadow of Jay's car is directly below it, meaning the sun is overhead (noon-ish).
The opening printed prologue, supposedly provided by an Arizona State Police official, misspells Tucson as "Tuscon." Not an auspicious start for a film trying to authenticate found footage.
These kids could be Darwin Award nominees. According to the one paper map they brought (before it was partially burned), they could have driven to within about an hour's walk of the village ruins instead of a meandering two-day hike. Also, everyone has a smartphone but nobody thought to upload an offline map before going off the grid.