The Mathern Course at St. Pierre sits within the grounds of a historic Marriott hotel and country club near Chepstow in Monmouthshire, close to the Welsh-English border. Designed by Ross McMurray, the course occupies parkland terrain that forms part of the broader St. Pierre estate, which has been developed for golf since the mid-20th century. The property is better known for its Old Course, which has hosted professional tournaments, but Mathern serves as the resort's second eighteen-hole layout. The course plays through mature parkland with tree-lined fairways characteristic of the Wye Valley region. The routing takes advantage of the estate's natural contours, with elevation changes that provide variety in shot-making and visual interest across the round. Water features come into play on several holes, adding strategic considerations to club selection and approach angles. As a resort course, Mathern caters to a range of abilities, offering a more accessible complement to the championship demands of the Old Course. The layout provides hotel guests and visitors a full golf experience within the St. Pierre complex, which includes extensive practice facilities and clubhouse amenities typical of a country club hotel operation. The setting benefits from the scenic qualities of the lower Wye Valley, with views across the Monmouthshire countryside that define this corner of southeast Wales.