Sierra Sue is a 1941 American Western film directed by William Morgan and starring Gene Autry, Smiley Burnette, and Fay McKenzie. Written by Earl Felton and Julian Zimet, the film is about a government inspector investigating a poisonous weed that is destroying the rangeland supporting the area's cattle. The inspector must persuade the ranchers to reject a plan to burn the land and support a new process of chemical spraying from an airplane. The film features the popular Autry songs "Be Honest With Me", "Ridin' the Range", and the title track.

Mammoth Lakes is a town in Mono County, California, and is the county's only incorporated community. It is located immediately to the east of Mammoth Mountain, at an elevation of 7,880 feet (2,400 m). As of the 2020 United States Census, the population was 7,191, reflecting a 12.7% decrease from the 2010 Census.