Rescue units pulled a 22-year-old male bicyclist to safety after he fell 250 feet down an embankment off Glendora Mountain Road at Glendora Ridge Mountainway at about 10:10 a.m.
According to LA County Sheriff's PIO Mike Parker, the Walnut resident, who Parker called "an experienced mountain biker," traveled down Glendora Mountain Road at high speeds, lost control of his bicycle and veered off the embankment.
A Sheriff's AIR5 helicopter reached the bicyclist by sending two paramedics down the embankment and hoisting him up with a cable, said county fire inspector Matt Levesque.
The extent of the patient’s injuries are unknown at this time, said Levesque, although the bicyclist was alert and communicated to rescue teams on his cell phone prior to his rescue.
"Given the terrain, we were surprised to see he could get cell phone reception, especially on the back side of the ridge line,'' Crew Chief Deputy Darrel Airhart said. "It's a good thing he did or who knows how long he could have been laying there.''
At 11:54 a.m., the bicyclist was transported to a trauma center at Huntington Memorial Hospital in Pasadena, according to Sgt. Everett Rodriguez from the San Dimas Sheriff’s station.
City News Service contributed to this report.