Bihar

Capital · Patna · a state of flat Gangetic plains shaped by the Ganga and its north Bihar tributaries

Peak elevation

Rivers mapped

Protected areas

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More about Bihar

Rivers

Ganga180.4 km

Origin: Gangotri Glacier, Uttarakhand

Mouth: Flows east through Bihar past Patna and Bhagalpur into West Bengal

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Kosi223 km

Origin: Himalayas of Tibet and Nepal (Saptakoshi system)

Mouth: Joins the Ganga near Kursela, Bihar

Major dams: Kosi Barrage (Bhimnagar)

The 2008 Kosi floods, caused by an embankment breach near the Nepal border, displaced millions across north Bihar.

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Gandak9.2 km

Origin: Nepal Himalayas

Mouth: Joins the Ganga near Sonepur/Hajipur, Bihar

Major dams: Gandak Barrage (Valmiki Nagar)

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Son202.7 km

Origin: Amarkantak plateau, Madhya Pradesh

Mouth: Joins the Ganga near Patna

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Ghaghara61.4 km

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Bagmati365.7 km

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Falgu206.9 km

The river at Gaya is central to Hindu ancestral-rite (pind daan) pilgrimage traditions.

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Punpun215.6 km

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Ramsar Wetland

Kabartal Wetland (Kanwar Lake)

Ramsar 2436, Asia's largest freshwater oxbow lake; Begusarai district

Ramsar 2436, Asia's largest freshwater oxbow lake; Begusarai district.

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Nagi Bird Sanctuary

Ramsar; Jamui district | coord: single-source (Wikidata)

Ramsar; Jamui district.

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Nakti Bird Sanctuary

Ramsar; Jamui district, adjacent to Nagi BS | coord: estimated, unverified

Ramsar; Jamui district, adjacent to Nagi BS.

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Gokul Jalashay

Ramsar; Buxar district | coord: estimated, unverified

Ramsar; Buxar district.

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Udaipur Jheel

Ramsar; Darbhanga district | coord: estimated, unverified

Ramsar; Darbhanga district.

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Gogabil Lake

Ramsar; Katihar district | coord: estimated, unverified

Ramsar; Katihar district.

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National Park

Valmiki NP

Tiger reserve | coord: manually placed

Tiger reserve.

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Wildlife Sanctuary

Rajgir WLS

coord: manually placed

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Bhimbandh WLS

coord: manually placed

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Kaimur WLS

coord: manually placed

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Dams & reservoirs

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Kosi Barrage (Bhimnagar)Gandak Barrage (Valmiki Nagar)