The copper mine in the River Seaton valley, north of Crow’s Nest, began operations in 1833 and ceased in 1886. It yielded over 200,000 tons of copper ore. Situated on Caradon Hill’s southern flank and the River Seaton’s valley, the site neighbored West Caradon, Craddock Moor, and Gonamena mines. Originally attracted by alluvial cassiterite, miners established Gonamena stream works but later transitioned to hard rock mining. Under James and Peter Clymo’s ownership, copper prospecting began in 1834, resulting in the discovery of two copper lodes: the northern ‘Main’ lode and the southern lode, comprising several smaller lodes. Sump Shaft, Pearce’s Shaft, and Engine Shaft mark the northern lode, while Jope’s, Holman’s, and Kitto’s Shaft indicate the southern lode’s ruins. The mine was the sixth most productive copper mine in Cornwall, raising around 218,000 tons of 10% copper ore.