Farmington (Lower) River & Salmon Brook (2024)

The watershed as a whole comprises ten ecoregions, or areas with distinctive ecological and physical features. It also provides a critical dispersal and migratory route for both terrestrial and aquatic wildlife.

There are 19 state-listed plant species within the corridor, including the only known population of dwarf bulrush in a river ecosystem and the only known population of purple giant hyssop in Connecticut. Nearly the entire population of starry campion in all of New England is supported by the corridor’s floodplain forest.

The river itself is the only one known to support all 12 of the freshwater mussel species native to southern New England. The Farmington River may contain one of the New England’s most—and Connecticut’s only—viable dwarf wedgemussel populations.

Salmon Brook exhibits a basin-wide distribution of high-quality fish communities, which is rare in Connecticut. At least 25 species of finfish are present in Salmon Brook and 30 species in the lower Farmington River. The Salmon Brook supports an exceptional recreational fishery starring brown and native brook trout. Migratory fish, such as American shad, blueback herring, alewife, American eel, and Atlantic salmon, have excellent spawning habitat in the lower Farmington corridor. The mouth of the Farmington River where it meets the Connecticut River is the most diverse and one of the most important areas within New England in terms of fish resources. All 12 of the diadromous fish species thought to be present in the state are believed to be present at this location.

The cultural landscape of the lower Farmington River and Salmon Brook includes both American Indian and post-contact resources recognized as nationally and regionally significant. Initial human occupation of the area along the lower Farmington River and Salmon Brook dates back to the end of the Pleistocene about 11,000 years ago. The river and brook were clearly important to the existence of these early settlements as source of water, food, and transportation routes.

Significant historical themes exhibited in the Lower Farmington Valley for the post-contact period include early colonial New England settlement patterns, nineteenth century industrialism, and the rise of industrial agriculture as exemplified by tobacco farming. Agricultural settlements used the river’s waterpower for gristmills, sawmills, and fulling mills, and entrepreneurs established waterpower industries and factories all along the river and its tributaries. Some Farmington homes likely served as Underground Railroad stations. Farmington, then a largely agricultural community, served as a hub for various Underground Railroad routes and abolitionist activism.