The Ballad of Cable Hogue (1970) on Netflix

Cable Hogue is a prospector who is abandoned in the desert, with no water, by his so-called partners. Nearing death, he discovers a natural spring and he's soon at the nearest town to register a land claim. There he meets a pretty local prostitute, Hildy. Back at his claim site, he christens it Cable Springs and opens a stagecoach station where the horses can be watered and the passengers fed. Hildy soon joins him but only temporarily as she has dreams of moving to San Francisco and setting herself up there in her own popular line of business. Things are going well for Cable when, to his delight, his former partners show up. This time he's prepared for them. When Hildy returns after a long absence he's ready to pack it in and make his life with her but as is so often the case, fate intervenes.