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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.

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.