Complex sentence: Juno was chosen as the "county seat" because of its strategic location at the southern terminus of the Jupiter-Juno railroad, as well as, the northern terminus of the boat and connecting stagecoach line to Miami.
Split into simpler sentences: Juno was chosen as the "county seat" because of its strategic location at the southern terminus of the Jupiter-Juno railroad. Juno also held the northern terminus of the boat and connecting stagecoach line to Miami.