The Suheli River forms the southern boundary of the

Dudhwa National Park Dudhwa National Park is a national park in the Terai belt of marshy grasslands in northern Uttar Pradesh, India. It stretches over an area of , with a buffer zone of . It is part of the Dudhwa Tiger Reserve in the Kheri and Lakhimpur districts ...

and is considered the park's "life line". It is a major river of the park, which is considered one of the last areas of productive

Terai The Terai or Tarai is a lowland region in parts of southern Nepal and northern India that lies to the south of the outer foothills of the Himalayas, the Sivalik Hills and north of the Indo-Gangetic Plain. This lowland belt is characterised by ...

ecosystems in

India India, officially the Republic of India, is a country in South Asia. It is the List of countries and dependencies by area, seventh-largest country by area; the List of countries by population (United Nations), most populous country since ...

. The Suheli, along with the Sharda and Mohana drain into the Ghagra River system.Tiwaru, P. C., Joshi, B. (1998)
''Wildlife in the Himalayan Foothills: Conservation and Management''
Indus Publishing, New Delhi.

South Asian river dolphin South Asian river dolphins are toothed whales in the genus ''Platanista'', which inhabit the waterways of the Indian subcontinent. They were historically considered to be one species (''P. gangetica'') with the Ganges river dolphin and the Indu ...

s possibly occur near the confluence of the Suheli with the Ghagha (Ghaghara), but there have been no surveys to confirm this.Reeves, R. R., Smith, B. D., Kasuya, T. (2000
''Biology and Conservation of Freshwater Cetaceans in Asia''
Issue 23 of IUCN Species Survival Commission Occasional Paper Series

References

Rivers of Uttar Pradesh Rivers of Sudurpashchim Province Geography of Lakhimpur Kheri district {{Nepal-river-stub