The College farms 344 hectares in the fertile Tywi Valley, 3 miles from Llandeilo and 14 miles from Carmarthen. The focus of the Gelli Aur farm is to produce milk from grass. There are 500 milking cows split into two herds, allowing an evaluation of two different herd management strategies. There is also a small beef enterprise and a flock of breeding ewes.

Gelli Aur is also home to the Agricultural Research Centre, which aims to facilitate the development of Welsh agricultural industry through proactive technology transfer, and the provision of specialist advice.

Conference facilities Gelli Aur are also available throughout the year for seminars and meetings. The modern facilities supported by a dedicated team of lecturers, trainers and technical support staff and excellent catering offering varied menus, make it an ideal venue for any training or professional development events.