Bells of San Angelo

Bells of San Angelo is a 1947 American film directed by William Witney and starring Roy Rogers. Shot in Trucolor, the modern day Western film mixes half a dozen songs with mystery, international smuggling of silver, violence, a pack of dogs and comedy relief with one character packing a sixteen shooter.

The American mine owners say they play rough as there are no towns or law enforcement anywhere near them and their mine is just across the border making it a tempting target for robbers who plan to rob the mine then escape to Mexico.Other events are happening in the area, such as the arrival of Western mystery author Lee Madison who Roy and his friends feel ridicules the West and those who live in it. The gang doesnt know that Lee is really a woman, so when Lee becomes aware of their dislike for her writing, she hides under an alias. ........

Source: Wikipedia