The average density of the river network is 0.35 km/km2.

The weak river network constitutes a serious handicap to responding to the needs of water for people and animals.

Those visiting kin must now travel for days through river networks via Colombia.

It forms the country's watershed, separating the two main river networks in the country.

The river network that flows from east to west constitutes 10% of the total outflow.

Most of the wetlands are directly or indirectly linked to river networks.

It has a flat terrain, a dense river network and fertile soil.

The land racing below them still had river networks lined with the dark green of life.

This development has significantly modified the original natural river network.

Within its boundary, a river network provides the county with cheap and convenient transportation.