Hanna Ranch is a feature documentary about visionary cattleman Kirk Hanna and his personal struggle to protect a once prominent way of life in Colorado. Born into a life on the family ranch, Hanna became a leader in the environmental ranching movement that set out to protect the West from the relentless encroachment of development and misuse.

The Duttons face a new set of challenges in the early 20th century, including the rise of Western expansion, Prohibition, and the Great Depression.

At age thirteen, Dayton Hyde, a spirited beanpole of a boy, ran away from home in Michigan to Yamsi, his uncle’s ranch in eastern Oregon. This was in the 1930s, and Yamsi was one of the last great cattle ranches of the West. Soon the boy, nicknamed “Hawk,” was riding a horse, soaking up ranch life from the hired hands, and winning the cowboys’ respect. A natural bronco buster, he eventually became a rodeo rider, bull fighter, clown, and photographer,...