The river begins in the Gers department, traversing a predominantly rural landscape characterized by rolling hills and agricultural land.

Its course contributes to the local ecosystem and supports various agricultural activities in the region.

Along its journey, the Izaute passes through several communes, including: These communes are integral to the cultural and economic fabric of the region, with the Izaute River playing a vital role in their agricultural and ecological landscapes.

The Izaute's contribution to the Gélise River system underscores its importance within the local hydrology, supporting both natural habitats and human activities in this part of France.

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