There are major rivers that are extremely important during monsoon season and La Niña period.
The largest Pacific, has Columbia River, Sacramento, Yangtze, Mekong River.
Atlantic has Mississippi River, Nile River, Congo, Amazon,

Indian Ocean has Ganges River, Zambezi River

During La Niña cycle, desert region experiences drier weather, River Nile, is the most vulnerable river that will need greater protection and conservation. Savanna forest, grassland infrastructure.
Mountain ranges Himalayas, Ganges River infrastructure ( meadows improvement in tropical riverside ) for clean water, no debris/ loitering.

Rajwantee, Washington, USA

Pure water