The river just before it goes under U.S. Highway 50 in Pueblo County.
|Mouth||Confluence with Arkansas
|Mouth elevation||4,442 ft (1,354 m)|
Huerfano River is a 113-mile-long (182 km) tributary of the Arkansas River that flows from a source on Blanca Peak in the Sangre de Cristo Mountains of Colorado. It joins the Arkansas in Pueblo County just south of the town of Boone.
One major tributary is the Cucharas River.