Usnea Ridge
Usnea Ridge is a ridge at an elevation of 100–160 m, extending north-northwest from Jane Peak to Spindrift Col in central Signy Island, South Orkney Islands. This ridge was an ecological study site for British Antarctic Survey biologists. Named by the United Kingdom Antarctic Place-Names Committee in 1991 after lichens of the genus Usnea, which form a main element of the plant life on the ridge.