The news was broken earlier this evening (Friday) on tonight's Look North programme.
Harry joined the BBC in 1978 after working as a history teacher, and joined Look North in 1982, although he left for a spell working on BBC South Today in the 1990s.
He covered nine Olympic Games for the BBC and won two Royal Television Society awards for his sports documentaries: White Rose In Africa in 1992 and Dickie Bird: A Rare Species in 1997. He also won the RTS Best Presenter award twice.
In 2013 his work in broadcasting was recognised when he was appointed MBE in the Queen’s Birthday Honours list.
“Although he was my work colleague he was above all my friend. We shared many happy times together.
“I remember when we both got honorary degrees at Bradford University, we both smiled at each other. Two Bradford kids from ordinary backgrounds being given honorary degrees. He was so proud to represent Yorkshire. What a man he was.”
Chief Executive Officer of The Piece Hall Trust Nicky Chance-Thompson said: "Such sad and shocking news about the passing of Harry Gration.
"A true gentleman, proud Yorkshireman, family man and an all round good human.
"I will always remember what a wonderful ambassador you always were for us at The Piece Hall, working a 10-hour shift on our re-opening day."
Halifax's MP Holly Lynch said: "Such sad news, Harry was such a familiar face to everyone in Yorkshire.
"Thinking of Harry’s family and all those he worked with at BBC Look North."
MP for the Calder Valley Craig Whittaker said: "Such a sad loss. Such a wonderful, caring man who will be missed.
"Condolences to his family and colleagues he worked with."