interfluvial
/ˌɪntərˈfluviəl/
adjective
- Located or occurring between two or more rivers.
- The interfluvial region between the Amazon and its tributaries is rich in biodiversity.
- Farmers in the interfluvial area rely on seasonal rains because no major rivers flow through their land.
- The ancient city was built on an interfluvial plateau, safe from floods but with access to water.