Kayaking Ríos Tomochi-Sirupa-Aros: Chihuahua-Sonora, Mexico. American Whitewater Mar-Apr 2006; pp. 12-17; by Rocky Contos.
Ríos Tomochi, SIrupa, Papagochi, Aros, and Yaqui are described in the guidebook: Mexican Whitewater: Norte; A guide to the rivers of the Copper Canyon region.