Mother Lode

Mother Lode (1982) is a action, adventure, thriller directed by Charlton Heston rated 5.7/10.

A couple of young adventurers go into the wilderness of British Columbia in search of a lost colleague. Their plane crashes and they find themselves at the mercy of a crazed old Scottish miner, who has lived in isolation for many decades searching the mountain caves for a chamber of long lost gold. He is prepared to do anything - including murder - to keep his gold for himself.