Writing in 1952, Edwards comments: “Although never exceptionally numerous, lines of this type assisted materially in the development of many areas. As early as 1877, a 2-ft. gauge line, eight miles long, was inaugurated to link the Massachusetts towns of Bedford and Billerica, but the track and plant were removed to the State of Maine two years later, and used for the Sandy River Railroad. This line proved of great service to many previously isolated communities; its development was rapid, and extensions and branches soon brought its mileage up to 120. Other similar projects followed, mostly in Maine, and a sixty-year period of success resulted. In recent years, however, the usefulness of such small lines has declined. The present economic situation has proved an adverse factor … and nearly all of them have been closed.” [1: p555]