Bonc yr Hafod is a country park on the remains of the colliery spoil from Hafod Colliery.

In the 1970s Hafod tip was spread out and reshaped, mainly to stabilise it following the Aberfan disaster of 1966 when a coal spoil heap in South Wales slid down the hillside and covered many buildings including the primary school where 116 children and 28 adults were killed. The peaks of the Hafod tip were removed and the banks made less steep. For a short period in the 1980s, Hafod was reworked by a private company to extract coal from the tip. Terraces were dug into the hillside and powder coal extracted, which was burnt to generate electricity. During the work, the tip was extended south covering over the area where the mine buildings had previously stood. In the mid 1990s following a consultation with local people, Hafod was landscaped and the soil improved to allow trees to be planted and grassland to grow. Three quarters of Hafod was planted with 80,000 native trees, the rest of the land given over to grassland around the path network. A car park was built at the site of the old bath house, and many kilometres of tracks and paths were built. Ownership of Hafod passed to Wrexham County Borough Council in 1997 and it is managed as a Country Park. The success of the reclamation of the spoil heap is reflected in the diverse and beautiful habitats present at Hafod today. The park is now a SSSI (Site of Special Scientific Interest) and a SAC (Special Area of Conservation). This is due to the presence of great crested newts, a protected species which breed in the ponds on site. The park’s rich wildlife also includes skylarks, kestrels, butterflies and dragonflies. The stone sculpture on the top of the hill shows that Hafod's mining heritage has not been forgotten.