Rescuers were sent to the southern end of Vanalden Drive, where it dead ends at Marvin Braude Gateway Park, about 9:30 a.m., d'Lisa Davies of the Los Angeles Fire Department said.
"The man had been hiking in the area around 4:30 or 5 p.m. yesterday when he slipped and fell down the canyon," Davies said. "Another hiker heard him calling for help and guided us to the man."
Rescuers pulled the man to safety around 11:05 a.m., she said.
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The victim suffered minor abrasions and contusions, Davies said, adding that he may have become hypothermic. The man, whose name was withheld, was taken to a hospital to be checked out.