Railway No. 3
That length of the former Thame branch railway of the Board described in and authorised by the Act of 1857 in the parish of Longwick-cum-Ilmer in the district of Wycombe in the County of Buckinghamshire which extends from a point (reference point SP 786036) 15 metres east of the eastern abutment of the bridge carrying the railway over the B4009 road near Little Horsenden Farm, continuing in an easterly direction for a distance of 340 metres and terminating by a converging junction with Railway No.1 at its eastern terminus where that railway makes a junction with the commencement of Railway No. 2 (reference point SP 789036).