The Crișul Negru is a river located in western Romania. It is a tributary of the Crișul Alb and flows through the counties of Bihor and Arad. The river is approximately 100 kilometers long and is known for its picturesque landscapes and natural beauty. The Crișul Negru is an important waterway for the region, providing irrigation and supporting local ecosystems. It also offers recreational opportunities such as fishing and kayaking. The river's basin is home to various flora and fauna, contributing to the biodiversity of the area.