NORTH HUANGHAI SEA, REPORTED IN THE DADONGGANG CHANNEL,OBSTRUCTION MEASURED 33 METERS LENGTH 8 METERS WIDTH,IN AREA BOUNDED BY THE LINES JOINING:
1.124-07.100N/39-42.135E
2.124-07.106N/39-42.133E
3.124-07.099N/39-42.113E
4.124-07.091N/39-42.115E
CAUTION ADVISED. LIAONING MSA CHINA.