Later, the protective role of the river basin gave way to economic needs.
The river basin has a population of 5.4 million inhabitants.
In this way, the king gained control of the river basin.
Thus a large number of people along the river basin engage in fishing as well.
This makes it the largest single river basin entirely in the state.
It is one of four such dams in the river basin.
The area of the river basin is 3.5 square kilometers.
The river basin covers about 27% of the state's territory.
It is found in the major river basins of Brazil.
Several major river basins lie in part, or entirely, within Texas.
It is about long, with a drainage basin in area.
Over a half million people live in its drainage basin.
Its drainage basin has an area of 1,670 km2, and is populated by around 4 million people.
The Sound is also a drainage basin for three major rivers.
The lake's drainage basin has an area of about 1,120 km2.
Most of the land in the river's drainage basin is commercial forest.
The drainage basin of the river is also fairly large.
The river is 110.1 km long and has a drainage basin of 2,853 km2.
Their combined drainage basin is home to some 600 million people.
In 2000, about six million people lived within the Columbia's drainage basin.
Their drainage areas are between 0.6 and 8.41 square miles.
The total drainage area of the river is approximately 1,500 square miles.
It is 128 km long and has a drainage area of 1,892 km2.
It is about 50 kilometers long and has a drainage area of 409.9 km2.
However, nearly 90 percent of its drainage area is located within Massachusetts.
The river has a drainage area of about 27,300 km2.
The total drainage area of the river is 1704 km2.
About 150000 people live in the drainage area of this river.
It is 72.5km in length and has drainage area of 959km2.
It is the fifth largest river system in the country with drainage area of 5,952 km2.
Mineral springs are also found in the catchment basin.
A number of hiking trails are found within the catchment basin of the lake.
The moor is partly within the catchment basin of the loch.
Most of the country lies within its catchment basin.
It is more saline on the Iranian shore, where the catchment basin contributes little flow.
A catchment basin for local water supply was built below the village in 1967.
On his last trip to the base camp, he'd seen the catchment basins used to collect rainwater.
Previous notions focus on catchment basins, but not to the produced separating line.
The west held neat patches of various crops, each patch sitting in its own catchment basin.
The boundaries of these new regions are based on catchment basins.