Montsweag Brook is a small stream located in Maine, USA. It flows through Lincoln County and is a tributary of the Sheepscot River. The brook is known for its natural beauty and provides a habitat for various wildlife species. The surrounding area features lush vegetation and is popular for outdoor activities such as fishing and hiking. Montsweag Brook plays a role in the local ecosystem, contributing to the water quality and biodiversity of the region. Its waters are also important for maintaining the health of the Sheepscot River and the larger Maine watershed.