Little River (Casco Bay)

The Little River is a small tidal river located in Casco Bay, Maine, United States. It primarily drains areas of Brunswick and Topsham, contributing freshwater flow into the larger bay system. The river's course is relatively short, and its watershed encompasses a mixture of forested lands, residential areas, and some agricultural lands. Its mouth opens into Maquoit Bay, a sub-bay of Casco Bay.

The river is characterized by its significant tidal influence, resulting in intertidal mudflats and salt marshes along its banks. These habitats are crucial for a variety of marine and avian species, serving as feeding and nursery grounds. Shellfishing, particularly for clams, is a common activity in the intertidal zones of the Little River and Maquoit Bay.

Historically, the Little River was used for small-scale industrial activities, including milling. While these activities have largely ceased, the river's water quality and ecological health are subject to ongoing monitoring and conservation efforts due to concerns related to stormwater runoff, pollution, and habitat degradation. Preservation efforts focus on maintaining the ecological integrity of the river and its surrounding watershed.