Mother Lode (also called Search for the Mother Lode: The Last Great Treasure) is a 1982 adventure thriller film directed by and starring Charlton Heston. It was written and produced by his son Fraser Clarke Heston. The film also stars Nick Mancuso and Kim Basinger as a gold-hunting couple.

Plot

Mollyco Company employee George Spalding disappears after a flight into northern British Columbia's interior wilderness to search for gold. His friend and colleague, Jean Dupre, contacts his wife Andrea to ask if George told her where he was going before he left. Dupre, who just happens to be available to search for George, having been fired after intimidating a surly manager with aerobatic manoeuvres in a Mollyco Company Cessna 206 aircraft by landing and walking away from the plane as it continues to taxi onto an active runway into the path of a landing Cessna 185, with the Mollyco executive still on board.