The Malibu Half Marathon (and Mammoth Mountain's opening weekend) California, Malibu, Running/Races, usaBrittany RouilleNovember 14, 2013best california runs, california half marathon, california marathon, california skiing, malibu international half marathon, malibu international marathon, malibu marathon trail map, mammoth mountain opening weekend, mammoth mountain skiing, mammoth mountain trails, running los angeles, snow boarding mammoth mountainComment