The stretch of the main southern area is hilly terrain especially towards the northeast and east where it is surrounded by ranges of the Sahyadri mountains (Western Ghats). The central alluvial region of the land is almost plain and the soil is fertile and rich. The river Damanganga rises in the Ghat 64 km from the western coast and discharges itself in the Arabian Sea at the port of Daman after crossing Dadra and Nagar Haveli. Its three tributaries, Varna, Pipri and Sakartond, join Daman Ganga within the territory.