The Machias River is a scenic waterway located in eastern Maine, flowing approximately 30 miles from its source in the town of Machias to its mouth at the Atlantic Ocean. The river is known for its clear waters and diverse ecosystems, making it a popular spot for fishing, kayaking, and wildlife observation. Historically, the Machias River played a significant role in the region's development, serving as a transportation route for early settlers and industries. The river's watershed supports various habitats, contributing to the area's natural beauty and ecological health, which includes species like salmon and herons.