The Casino star, 68, suffered concussion in the accident which occurred after the vehicle in front spun out of control during an ice storm in the Rocky Mountains.

Woods reveals his car crashed into a guard rail which stopped him plunging into a river below, and he thanked the emergency services for responding to the disaster so quickly.

"Huge thanks to EMT's... (police) and ER at Glenwood Springs... God smiled on me today. I am so happy to be alive..." he tweeted. "Rockies, guy doing 75+ in an ice storm spun out. I hit right wall to avoid him, spun 180 (degrees), hit left wall sliding backwards going 60 mph... Huge drop 100 feet into river below, but the guardrail held. I managed to pull out and slide down out of oncoming traffic... No deaths. Banged up. Car wrecked. Good to be alive. Glad everybody survived...

"Every person I dealt with here in Colorado was just superb, professional and caring... Including me it was a seven car crash, I guess. Police told me I'm the only one who didn't hit anybody else. I just crashed into the walls... I was in my 4WD Jeep Grand Cherokee. That Jeep saved my life... I admire the fire and police personnel and tow truck drivers out there in storms on dangerous roads. God bless them."

The actor went on to reveal he suffered a head injury in the accident, but was not seriously hurt.

He added, "Sorry I'm rambling. Little concussion. Thanks for all the lovely words of support, everybody. Please drive safely for the Holidays."