The concrete channelized stream soon enters southwestern San Bernardino County .
The concrete channelized stream soon runs generally southeast across the Chino Valley between the Chino Hills to the south , and the city of Chino to the northeast .
The concrete channelized stream soon enters southwestern San Bernardino County and runs generally southeast across the Chino Valley between the Chino Hills to the south , and the city of Chino to the northeast .