Riu de la Llavanera is a river located in the northeastern region of Spain, specifically in the province of Barcelona. It flows through the municipality of Llavanera, which is known for its scenic landscapes and natural beauty. The river is a vital part of the local ecosystem, supporting various plant and animal species. The river's course is characterized by its gentle flow and surrounding greenery, making it a popular spot for outdoor activities such as hiking and birdwatching. Additionally, the Riu de la Llavanera contributes to the area's agricultural irrigation, benefiting local farms and gardens.