An adorable dog is believed to be the first ever pooch to climb every mountain in England.<br /><br />Bentley, a nine-year-old Jack Russell, has climbed all 180 Hewitt mountains in England with his owner Jon Birtle, 55.<br /><br />The pair started the challenge when they climbed Pen-y-ghent in the Yorkshire Dales and finished it on May 5 when they went to the top of Place Fell in the Lake District.<br /><br />Bentley is now believed to be the first dog in the UK to do this so Jon 'gave him a kiss and thanked' him when they finally completed the challenge.