One of the peaks on the northern side of the glen, Sgùrr nan Spàinteach (Peak of the Spaniards), derives its name from the 200 Spanish troops who fought a rearguard action on the side of the defeated Jacobite rebels and who retreated over the peak. This peak's parent mountain is Sgùrr na Ciste Duibhe, which means peak of the black chest. Irvine Butterfield writes that although some of the coins they [the Spanish soldiers] dropped were later found there is no mention that they fell from a black chest [...] the black chest is in reality the deep hollow of the Allt Dearg on the south-west slope [of Sgùrr na Ciste Duibhe].