Monks Trod is a byway open to all traffic in Wales, developed originally by Cistercian monks between the twelfth century abbeys of Cwm-Hir, near Llandrindod Wells, and Strata Florida, near Tregaron, Ceredigion. In 1990, as a result of widespread damage to the SSSI section, a Traffic Regulation Order (TRO) was placed on the Monks' Trod, banning four-wheeled vehicles only. In 2002 a temporary TRO was imposed, banning all motor traffic, including motorcycles.