Kolkata topographic maps

Average elevation: 9 m

Average elevation: 6 m

Spread roughly north–south along the east bank of the Hooghly River, Kolkata sits within the lower Ganges Delta of eastern India approximately 75 km (47 mi) west of the international border with Bangladesh; the city's elevation is 1.5–9 m (5–30 ft). Much of the city was originally a wetland that was…

Average elevation: 5 m

Average elevation: 3 m