80’s or 90’s I think.

Saw it on american television

Color film in english

Young kids, maybe a young couple, somehow get trapped in a secret and deadly community in a desert ravine.  This “town” is strange, inbred?, hickish, made up of people from an old abandoned mining community? and led by one man who is not so nice.  I think the kids get away at the end but I’m not entirely sure.  They escape the town and there is a car chase.  It’s very strange and messed up.