Revealing mistake: When McKay and Ramon are riding into Blanco Canyon to rescue Julie, you can see a diesel loading shovel with its bucket raised in the bottom of the frame of one of the scenic shots. Presumably the scene was shot in a quarry and they didn't get all the equipment out.
The Big Country (1958)
1 revealing mistake - chronological order
Directed by: William Wyler
Starring: Charlton Heston, Gregory Peck, Jean Simmons, Carroll Baker
Continuity mistake: When Jim tries to ride "old Thunder" he bucks off and brushes all the straw out of his hair. Seconds later it is back.
Patricia Terrill: But if he loved me, why would he let me think he was a coward?
Julie Maragon: If you love him, why would you think it? How many times does a man have to win you?
Trivia: Burl Ives plays Rufus Hannassey, the father of Buck Hannassey (Chuck Connors). In real life, Ives was only 11 years older than Connors.