A survey of access problems on a Glen Lyon estate is being carried out by the Mountaineering Council of Scotland. Long-running problems on the North Chesthill Estate have seen a steady stream of complaints from hill walkers who feel they have been obstructed from their legal right of responsible access. Besides being internationally renowned for its beauty, the glen is also home to a popular circuit of four Munros – mountains over 3000 feet – but at the most popular starting point for the walk a gate is regularly locked and signs imply that access is forbidden. Perth & Kinross…