Water resources
Bac Giang territory where three great rivers flowing through with the total length of 347 km, large water flow and have water all time of the year. The system of ponds, lakes, marshes, groundwater have sizable reserves. The amount of surface water, rainwater, groundwater afford water supply for economic sectors and activities, particularly on the river water resources as follows:
-Cau River: Cau River has total length of 290 km, flows through the region of Bac Giang with the length of 101 km. Cau River has two major branches located at the right bank of the Cong River and Ca Lo River.
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- Some big lakes: Bac Giang has 70 large reservoirs with a total area of 5,000 ha, some lakes have sizable water area and reserves including Cam Son Lake with water reserves of about 307 million m3; Suoi Nua Lake with reserves of about 6.27 million m3; Ho Cao Lake with reserves of approximately 1,151 million m3; Cay Da Lake, about 2.97 million m3 of reserves and Suoi Mo Lake with about 2.024 million m3 reserve ...
- Groundwater resources: The volume of groundwater in Bac Giang estimated at 0.13 billion m3/year, groundwater quality is quite good, used in activities and irrigation in agriculture; however underground water distribution is uneven, mainly concentrated in some midland districts like: Lang Giang, Tan Yen, Hiep Hoa, Viet Yen and Yen Dung.
Bac Giang has many lakes with large water reserves and beautiful scenery.