The most comprehensive map for the race is the Footprint Cateran Trail map, available from Amazon UK -
Or directly from the company at - www.footprintmaps.co.uk
This map is waterproof and follows the correct route which the OS map doesn't. The race route follows the Official Alternative Route between Alyth & Blairgowrie which is marked on the above map. This map also shows the correct path out of Kirkton of Glenisla which shows after crossing the footbridge, runners should head up the hill as marked with the new posts and not around the hill which was the old route.
This will be mentioned in the race briefing and also marked on the day.