Ganges Basin (112,490 km²), West Bengal (71,485 km²), Haryana (34,341 km²), Himachal Pradesh (4,317 km²) , Delhi, Arunachal pradesh(1,484 km²), the whole of Bangladesh, Nepal and Bhutan. Several tributaries rise inside Tibet before flowing south through Nepal. The basin has a population of more than 500 million, making it the most populated river basin in the world. The basin comprises semi-arid valleys in the rain shadow north of the Himalaya, densely forested mountains south of the highest ranges, the scrubby Shiwalik foothills and the fertile Gangetic Plains. Central highlands south of the Gangetic Plain have plateaus, hills and mountains intersected by valleys
Yukon River Basin Half of the Yukon River Basin lies in Canada, with the other half occupying space in Alaska. The Yukon River Basin is made up of many different geological terrains, which is why there is a variety of different rocks that make up the basin itself. A few of the many types of rocks includes various types of sedimentary, igneous, and metamorphic rocks There are several different land types that make up the entirety of the Yukon River Basin. These include the needleleaf forest, tall and low shrublands, broadleaf forest, lichens, barren, wet herbaceous, dwarf shrublands, dry herbaceous, ice/snow, and rivers,