an Entity references as follows:
State Route 90 (SR 90) is a highway in Cochise County, Arizona that runs from the I-10 junction at Benson to a junction with State Route 80 between Bisbee and Tombstone. It is a north–south route north of Sierra Vista, and an east–west route east of the city. It passes through the San Pedro Riparian National Conservation Area at milepost 329; the riparian area makes up a large part of the southern section of the San Pedro Valley.