Ystradfawr | The Wildlife Trust of South and West WalesThis reserve, once the site of extensive coal mining, is a great example of how nature has reclaimed the landscape. It is a rich mix of wildlflower meadow, rhos pasture and young woodland. It is one of the best sites in Wales for the rare marsh fritillary butterfly. The reserve is also perfect for spotting Dragonflies and Damselflies.This reserve, once the site of extensive coal mining, is a great example of how nature has reclaimed the landscape. It is a rich mix of wildlflower meadow, rhos pasture and young woodland. It is one of the best sites in Wales for the rare marsh fritillary https://www.welshwildlife.org/nature-reserves/ystradfawr