Clive Barker?
Is this is any way related to Coldheart Canyon, 2001, by Clive Barker,
in a Lawnmower man-ish sort of way, like... just using the name,
slightly modified here, and doing your own thing from that point?
I can't see any similarities between the novel plot and what
information I can find about the movie.
Or does Cold heart canyon actually mean something?
Is it a real place, rather than a stolen title?