On Monday, September 3, 2012, the Yosemite Emergency Communications Center (ECC) received a 911 report of two seriously injured hikers (one male and one female) just above Chilnualna Fall, a waterfall approximately four and a half miles from the nearest road, in the park's Wawona District. Reportedly, the two individuals were scrambling off-trail when they slipped, slid approximately 30-35 feet down a smooth granite slab, and then fell vertically 15-20 feet onto large uneven rocks. The female landed between two boulders and her companion landed on top of her. The reporting party stated that the female was unconscious and the male was complaining of severe lower back and pelvic pain.