TV archeological experts Neil Oliver and Dr Tony Pollard have led amateur sleuths on the trail of one of Scotland's greatest mysteries, the whereabouts of the Battle of Bannockburn.

The familiar faces were joined by dozens of adults and children for the weekend's National Trust for Scotland's "Big Dig" event, which aims to find traces of the site to coincide with its 700th anniversary next year.

Some elements of the work were filmed as part of a special two-part BBC Scotland series presented by Mr Oliver and Dr Pollard, which will go out in spring 2014.

Local community volunteers took part in the mass archaeology project at the Braehead field near Bannockburn, to search for clues as to where elements of the battle took place on June 23 and 24 in 1314.

The Big Dig is part of an on-going archaeology project being undertaken by the National Trust for Scotland in association with Glasgow University's Centre for Battlefield Archaeology, Stirling Council, GUARD Archaeology Ltd and BBC Scotland.

Five local families lent their back gardens to the project as test pits, allowing a search for objects lost during or after the fighting in unsearched areas.

David McAllister, director of the Battle of Bannockburn Project, said: "Com-munity outreach is an integral part of the Battle of Bannockburn project and the turnout of volunteers for the Big Dig and Garden Search was excellent."