vietnam coal workers in the strip mines at hon gai near halong c 1900 hon gai now part of ha long city is part of the capital city of qung ninh province the city mainly lies on bai tu long bay which adjoins h long bay it is located at about 160 km northeast of hanoi hong gai has long been the main source of surface coal in vietnam and its strip mines especially during the colonial period were infamous for their hard conditions approaching near slave labour h long city is divided into two parts east h long and west h long 2b00mt0.jpg from long hаir dаncе View Photo