Bellyford Burn’s old coal-mine spoil heaps preserve Carboniferous plant fossils beside the Pencaitland Railway Walk, west of Ormiston. Shale fragments contain stems, including reported Calamites, and less frequent leaf impressions. The Limestone Coal Formation records the sediment and vegetation of an ancient delta landscape, now brought to the surface in discarded mine rock. Carboniferous, Spoil heaps, Rating: ♦♦♦