The 50th anniversary of two important landmarks in the history of the Chilterns has been marked with the launch of a new beer.

In 1965 the Chiltern Society was formed following an appeal in the Bucks Free Press. A few months later, in a separate move, the government of the day officially designated the Chilterns an Area of Outstanding Natural Beauty (AONB)

Now, the appropriately named Chiltern Brewery has produced a new ale, the Chiltern Double Fifty, to celebrate the anniversaries.

Head brewer Tom Jenkinson said: "We want these organisations to be around for as long as possible to help protect our wonderful rural landscape. The Chiltern hills have been a huge inspiration for us."

Five pence from every pint sold will be donated to the society, a charity with hundreds of conservation volunteers, and the Chilterns Conservation Board, which administers and looks after the AONB.

The draught ale will be sold in pubs across the Chilterns during autumn. Its name was the winning entry in a competition to describe the brew.

It’s described by the brewery as an “autumn dark amber ale, 4.2 per cent volume, with smooth roast malt and citrus aromas.”