The Redhead from Wyoming

The Redhead from Wyoming is a 1953 American Western drama film produced by Leonard Goldstein and directed by Lee Sholem. It stars Maureen OHara as a saloon proprietress who becomes embroiled in a cattle war and Alex Nicol as the sheriff who tries to prevent it. The supporting cast includes William Bishop as a politician who provokes the war and Alexander Scourby as a prominent cattle rancher.

The tension between Duncan and the settlers rises as the settlers search for mavericks on Duncans land and outlaws hired by Averell steal Duncans cattle. Averell designed the KM brand for Kates cattle business in such a way that her branding iron completely covers Duncans bar double check brand when applied directly over it. When Averell explains this trick to Kate, he makes it clear to her that she will be hanged as a rustler if she informs the authorities, and Duncan refuses her offer to support him against Averell.Meanwhile, unknown gunfighters assemble in the nearby hills, and one of them shoots a settler. After Duncan attempts to stop a cattle roundup organized by Averell and the settlers, one of his men is killed, with Kates branding iron left near the body. To further increase the tension, Averell offers Duncan his support against the settlers immediately after inciting their anger against Duncan. Averells plan is to ignite a cattle war and promote his own political career by providing leadership once the war has begun. ........

Source: Wikipedia