Complex sentence: In 1876, James Graham Fair, a Comstock Lode silver baron, bought the line and extended it into the Santa Cruz Mountains to capture the significant lumber traffic coming out of the redwood forests.
Split into simpler sentences: In 1876, James Graham Fair, a Comstock Lode silver baron, bought the line. He extended the line into the Santa Cruz Mountains in order to capture the significant lumber traffic coming out of the redwood forests.