First Falls, Maine

The First Falls are the first of four waterfalls in Yarmouth, Maine, United States. They are located on the Royal River, approximately a mile from its mouth with inner Casco Bay at Yarmouth Harbor and around 0.35 miles (0.56 km) downstream of the Second Falls. The river appealed to settlers because its 45-foot rise in close proximity to navigable water each provided potential waterpower sites. As such, each of the four falls was used to power 57 mills between 1674 and the mid-20th century.