Ninemile Canyon in eastern Utah has long been a vital corridor because Nine Mile Creek provides dependable water in an otherwise dry region. It preserves one of North America’s richest concentrations of Indigenous archaeology, with at least 1,000 rock art sites, more than 10,000 images, and many pit houses, shelters, granaries, and farming traces linked especially to the Fremont culture from about AD 950 to 1250, later joined by Ute use and imagery. In the historic era it became a principal route into the Uinta Basin, carrying road, stage, mail, and freight traffic. Today it is valued both as a scenic byway and as a fragile archaeological landscape under active protection.