Community of Mexico Maine - Photo Mexico, Maine welcome highway sign Welcome to Mexico Maine. Year 1819,was the year of the great migration when hundreds of families left their New England homes for the Ohio Valley. Between 10 - 15000 people hitched up their oxen or horses and went west. It was a brutal, exhausting journey, markedby attacks by Indian and bands of highwaymen. New Hampshire / Maine State Line to East Dixfield ( Junction of Highway #17 ) Celebrate art in Maine and discover the state's unique and lively cultural heritage. Maine's thundering surf, fog-shrouded islands, and craggy forests have inspired artists for generations.