The man in his fifties suffered severe head and suspected chest injuries in the incident which occurred just after midnight.
Eleven members of Coniston Mountain Rescue Team worked with Cumbria Fire and Rescue Service and paramedics to treat the man at the scene. He has been transferred to Furness General Hospital.
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Not a bad start to the week. A little chilly on Monday morning, any mist lifting quickly
Emma brings you ITV Border's Sunday Weather Forecast.
Clear start, patchy cloud at the east coast, some mist forming further west. Cool in the countryside