Ystrad Fawr is a valley located in the southern part of Wales, specifically in the county of Rhondda Cynon Taf. It is known for its scenic landscapes and rich natural resources, including coal mining history. The valley is surrounded by hills and offers various outdoor activities, making it a popular spot for hiking and exploring. The area is also home to several communities, including Ystrad Mynach and Treforest. Ystrad Fawr has a mix of residential and commercial developments, contributing to the local economy. The valley's cultural heritage is reflected in its historical sites and community events throughout the year.