A couple of youngish 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.
Unfortunately the movie Mother Lode is not yet available on HBO Max.
| Directing | Charlton Heston | Director |
| Writing | Fraser Clarke Heston | Screenplay |
| Production | Fraser Clarke Heston | Producer |
| Production | Les Kimber | Associate Producer |
| Production | Peter Snell | Executive Producer |
| Sound | Kenneth Wannberg | Original Music Composer |
| Camera | Richard Leiterman | Director of Photography |
| Editing | Eric Boyd-Perkins | Editor |
| Art | Douglas Higgins | Production Design |
| Art | Michael S. Bolton | Art Direction |
| Art | James H. Chow | Art Direction |
| Art | Jim Erickson | Set Decoration |
| Costume & Make-Up | Jamie Brown | Makeup Artist |
| Costume & Make-Up | Phyllis Newman | Makeup Artist |
| Crew | Thomas R. Burman | Makeup Effects |
