The Sainte-Marie River is located in the province of Quebec, Canada. It flows through the region of Chaudière-Appalaches and is a tributary of the Chaudière River. The river is approximately 40 kilometers long and is known for its scenic beauty and recreational opportunities. The Sainte-Marie River is popular for activities such as fishing, kayaking, and hiking along its banks. The surrounding area features lush forests and diverse wildlife, making it a great spot for nature enthusiasts. The river also plays a role in the local ecosystem and contributes to the region's natural resources.