Late in the day, Santa Fe 9551 East roars up the Sacramento Wash at Yucca, AZ. Besides eroded material, this area is laced with volcanic basalt.
An eastbound manifest behind an SF30C has just cleared the southern extremity of the Black Mountains and is making its way up the huge Sacramento Wash toward Kingman.
Swinging around the southern extremity of the Black Mountains, Santa Fe 9551 climbs the Sacramento Wash toward Kingman and the Arizona Divide.