The burns around Dalmellington expose Carboniferous coal-bearing rocks, with fossil mussels recorded in several shale beds and plant fragments noted in the original field guide. Cummock Burn, Black Burn and the Craigmark gorges reveal different parts of this succession. Low water can expose more rock, but these historical collecting places require careful route planning and permission to collect. Carboniferous, Stream Cutting, Rating: ♦♦




