Hell's Gate is located in Possum Kingdom Lake, in Texas. Located in the middle of the lake, it is a sheer break between two cliffs. It is largely unknown how it came to be that way but this film provides a possible explanation.
'Smalls Change (Meditations Upon Ageing)' arrives in April.
The two awards have made for a great 72nd birthday present for the country music icon.
It will feature on the forthcoming album 'Both Sides of the Sky'.