Bonc yr Hafod (meaning: Hafod Bank) is a country park, on the former site of Hafod Colliery, near Johnstown and Pentre Bychan in Wrexham County Borough, Wales. The country park is centred on a former spoil tip hill, known locally as "Picnic Mountain" (Welsh: Mynydd Picnic), rising up 150 metres (490 ft). The country park is 90 acres (0.36 km2) in size of mainly woodlands and grasslands. The park is home to one of the largest community woodlands in North East Wales.