Untamed Frontier (1952)

The Denbow family hope to freeze out homesteaders by denying access across their land; but to evade a murder charge, Glenn Denbow marries the only witness, Jane, who's conveniently in love with him, but favors the settlers. When Glenn goes back to his blackmailing old flame Lottie, a warm regard develops between Jane and cousin Kirk Denbow. Things come to a head when an impending range war coincides with a rustling foray.