The remnants of hush gullies are visible at many places in the Pennines and at other locations such as the extensive lead mines at Cwmystwyth in Ceredigion, Wales, and at the Stiperstones in Shropshire. Another notable example is the Great Dun Fell hush gully near Cross Fell, Cumbria, probably formed in Georgian era in the search for lead and silver. This gully is about 100 feet deep, carries a small stream, and is a prominent landmark on the bleak moors. The dams used to store the water are also often visible at the head of the stream.