Location of the 'Batcave' in Bronson Canyon where two hikers are being rescued A cliff rescue operation began early this afternoon in Griffith Park shortly before 2:00 p.m. One of two hikers in need of assistance alerted the Los Angeles Fire Department that they were in need of help. A female hiker, approximately 24 years in age, was unconscious and in serious condition, according to d'Lisa Davies, LAFD Spokesperson. The male hiker was found......