History of the Alder River Ponds
Over the years a number of Indian artifacts have been found on the shore of South Pond and the upper Alder River. When the first settlers arrived in this area around 1821, they reported finding a trappers’ trail leading from the Androscoggin River through East Bethel to the Alder River Ponds (North Alder, South Alder, and Round Alder). When the trappers first started using the ponds for their trade, we have no idea.
http://www.bethelcitizen.com/story.php?storyid=4772 for the story. Well worth the read for anyone interested in the history of Western maine, in particular the Alder Stream watershed and Locke Mills history.