Smoke Signal is a 1955 American western film directed by Jerry Hopper and starring Dana Andrews, Piper Laurie and Rex Reason.

Cavalry officer Brett Halliday is facing a court-martial for treason over his defection to a Ute tribe that has been making raids on soldiers.

After a bloody attack at the fort, survivors ford the Colorado River in boats, fleeing for their lives.

Ford falls to his death from a cliff while fighting with Halliday, who helps the others fend off another attack.

Parts of the film were shot in Professor Valley, Ida Gulch, Courthouse Wash, and San Juan River in Utah.