The area bounded by a line commencing on the Fife/Tayside regional boundary north-east of Mawcarse Railway Bridge at a point grid reference No 1532 0610; south-eastwards by fence line across a disused railway line to rejoin the said regional boundary at a point grid reference No 1534 0608; then south-westwards, north-westwards and north-eastwards along the said regional boundary to the point of commencement.