Hai Phong Portal

Topography, soil and land

The topography of Hai Phong is very diversified reflecting the long and complicated historical geological process. The northern part of Hai Phong has an appearance of plains alternated with hills, while the southern part of the city is a low and quite flat terrain of a typical delta inclining to the sea.

Although hills and mountains comprise just 15% of the total area of Hai Phong, they are spreading on more than half of the northern part as continuous mount ranges running in the North West - South East direction. Their origination process was closely related to the mountainous system of Quang Ninh in the North-East of Northern Part of Vietnam. Mountainous system of Hai Phong are remaining hills, traces of ancient bent foundation under ground where it was once slightly sagged down. The geological composition comprises of sandstone, shale, and limestone of different ages that distributed in separate continuous ranges running in the North West - South East direction from the mainland to the sea.

There are two main mountainous ranges: The range of mountains and hills running from An Lao to Do Son is non-continuous with a length of about 30km extending in the direction of North West - South East including hills of Nui Voi, Phu Lien, Xuan Son, Xuan Ang, Nui Doi, Do Son, Hon Dau; the range of Ky Son - Trang Kenh and An Son - Nui Deo with two mountainous branches: An Son - Nui Deo branch with the geological composition of mainly agglomerate sandstone, extending in North West - South East direction including hills of Phu Luu, Thanh Lang, Nui Deo; Ky Son - Trang Kenh branch extends in the North West - South East direction including numerous limestone hills, especially Trang Kenh limestone is a valuable material for cement industry of Hai Phong. Here, hills and mountains alternated with small spreading plains of ancient sediments elapsed from hills and recent alluvial sediment.