From 1879 to 1914 the routing was changed entirely , called the Half Moon Bay - Colma Road .
From 1879 to 1914 the routing was transversed over the mountain closer to the ocean on very steep and rutted switchbacks from above the Shamrock Ranch towards Martini Creek .
From 1879 to 1914 the routing was changed entirely , called the Half Moon Bay - Colma Road , and transversed over the mountain closer to the ocean on very steep and rutted switchbacks from above the Shamrock Ranch towards Martini Creek .