The set still stands outside Tucson, Arizona and is an active studio and Old West theme park called "Old Tucson". Since it was built in 1939, Old Tucson has served as the set for many famous Westerns such as Rio Bravo (1959) and Tombstone (1993). Little House on the Prairie (1974) also used the studios.
In 1940, when this film was released, Jean Arthur was forty years old and her love Interest, William Holden, was only twenty-two.
During production, Jean Arthur became preoccupied by the welfare of the animals on set. She adopted a dozen stray dogs, bought hay for the goats, paid for a vet to visit any injured animals and had the pigs sprayed with kerosene to cure their skin diseases.
The starring role was written with Gary Cooper in mind, and although he had previously co-starred twice with Jean Arthur (including The Plainsman (1936)), he declined the role that was ultimately inherited by William Holden.