"name ""Tetrao (Lagopus) leucurus"" by the Arctic explorer John Richardson in 1831. It was later determined that ""Lagopus"" had sufficient distinguishing features to be regarded as a separate genus and the bird became ""Lagopus leucurus"". Molecular studies have shown that ""Lagopus"" is monophyletic, with the rock ptarmigan (""Lagopus muta"") and White-tailed ptarmigan being sister species. The position of the willow ptarmigan (""Lagopus lagopus"") is less clear cut, it showing some genetic divergence over its wide range. The genus name ""Lagopus"" is derived from Ancient Greek ""lagos"" (λαγως), meaning ""hare"", + ""pous"" (πους), ""foot"", in reference to the bird's feathered legs."
"Petermann Peak Petermann Peak, (), also known as ""Petermann Fjeld"", ""Petermanns Topp"" and ""Petermann Point"" is a mountain in King Christian X Land, Northeast Greenland. Administratively it is part of the Northeast Greenland National Park zone. The area around Petermann Peak is uninhabited. This mountain is located in the high Arctic zone, where Polar climate prevails. The average annual temperature in the area is −16 °C. The warmest month is June, when the average temperature rises to −2 °C, and the coldest is January, with −22 °C. Petermann Peak rises to a height of 2,943 m on a nunatak located"
"in 1976. Purmerul Peak Purmerul Peak (, ‘Vrah Purmerul’ \'vr&h pur-me-'rul\ is the ice-covered peak rising to 2000 m in the west foothills of Bruce Plateau on Loubet Coast in Graham Land, Antarctica. It has steep and partly ice-free south and west slopes, and surmounts Hamblin Glacier to the southwest and Hugi Glacier to the north. The peak is named after the Thracian god Purmerul. Purmerul Peak is located at , which is 14.58 km north by east of Semela Ridge, 11.1 km east of Mount Lyttleton, 20 km south-southeast of Crookes Peak and 16.11 km northwest of Slessor Peak."
"Papiya Nunatak Papiya Nunatak (, ‘Nunatak Papiya’ \'nu-na-tak pa-'pi-ya\) is the rocky hill rising to 550 m in the south foothills of Detroit Plateau on Nordenskjöld Coast in Graham Land, Antarctica, north of the terminus of Drygalski Glacier. It is surmounting Kladorub Glacier to the northeast and Vrachesh Glacier to the southwest. The nunatak is named after Papiya Peak on the Bulgarian Black Sea coast. Papiya Nunatak is located at , which is 6.44 km southeast of the summit of Ruth Ridge, 6.2 km south-southwest of Cruyt Spur, 14.6 km west by south of Cape Worsley, 11.7 km north by"
"Stribog Mountains Stribog Mountains (, ‘Planina Stribog’ \pla-ni-'na 'stri-bog\) is the principal mountain system of Brabant Island in the Palmer Archipelago, Antarctica rising to 2520 m (Mount Parry). The feature is 40 km long in north-south direction and 15 km wide, connected to Stavertsi Ridge to the northeast by Viamata Saddle, to Avroleva Heights to the east by Doriones Saddle, and to Solvay Mountains to the south by Aluzore Gap. It is heavily glaciated, with steeper and partly ice-free west slopes. The mountains are named after the Slavic god of wind, ice and cold Stribog. Stribog Mountains are centred at"
"Purmerul Peak Purmerul Peak (, ‘Vrah Purmerul’ \'vr&h pur-me-'rul\ is the ice-covered peak rising to 2000 m in the west foothills of Bruce Plateau on Loubet Coast in Graham Land, Antarctica. It has steep and partly ice-free south and west slopes, and surmounts Hamblin Glacier to the southwest and Hugi Glacier to the north. The peak is named after the Thracian god Purmerul. Purmerul Peak is located at , which is 14.58 km north by east of Semela Ridge, 11.1 km east of Mount Lyttleton, 20 km south-southeast of Crookes Peak and 16.11 km northwest of Slessor Peak. British mapping"
"Vazharov Peak Vazharov Peak (, ‘Vazharov Vrah’ \v&-'zha-rov 'vr&h\) is the ice-covered peak rising to 700 m in Brugmann Mountains on Liège Island in the Palmer Archipelago, Antarctica. It surmounts Shterna Glacier to the north, Coria Cove to the east-southeast and Sigmen Glacier to the west-southwest. The feature is named after Mihail Vazharov, mechanic at St. Kliment Ohridski base in 1999/2000 and subsequent seasons, and base commander during part of the 2005/06 season. Vazharov Peak is located at , which is 2.14 km west by south of Balkanov Peak, 1.67 km north of Mount Kozyak and 3.02 km southeast of"
". British mapping in 1980 and 2008. Stribog Mountains Stribog Mountains (, ‘Planina Stribog’ \pla-ni-'na 'stri-bog\) is the principal mountain system of Brabant Island in the Palmer Archipelago, Antarctica rising to 2520 m (Mount Parry). The feature is 40 km long in north-south direction and 15 km wide, connected to Stavertsi Ridge to the northeast by Viamata Saddle, to Avroleva Heights to the east by Doriones Saddle, and to Solvay Mountains to the south by Aluzore Gap. It is heavily glaciated, with steeper and partly ice-free west slopes. The mountains are named after the Slavic god of wind, ice and"
"in 1978. Mount Moriya Mount Moriya (, ‘Vrah Moriya’ \'vr&h mo-'ri-ya\) is the rounded, ice-covered peak rising to 1700 m in Lovech Heights on Nordenskjöld Coast in Graham Land, Antarctica. It is surmounting Rogosh Glacier to the south and northwest, Zlokuchene Glacier to the east-northeast, and Risimina Glacier to the southeast. The feature is named after the medieval fortress of Moriya in western Bulgaria. Mount Moriya is located at , which is 1.9 km south of Mrahori Saddle, 14.2 km southwest of Tillberg Peak, 15.1 km north-northwest of the ridge forming Cape Fairweather, and 3.17 km east-northeast of Mount Persenk."
"Byrranga Mountains The Byrranga Mountains (; ""Gory Byrranga"") are a mountain range in the middle of the Taymyr Peninsula, Siberia, Russia. Even though they were first explored in 1736, the Byrranga Mountains are one of the least known areas of the Arctic. The climate is continental and harsh, with frequent blizzards in the winter. This mountain range falls into the Krasnoyarsk Krai administrative division of the Russian Federation and is part of the Great Arctic State Nature Reserve, the largest nature reserve in Russia. However, the area is very remote, there is almost no population, and access is very difficult"
"east of Sentinel Nunatak and 8 km east-northeast of Bekker Nunataks. British mapping in 1978. Papiya Nunatak Papiya Nunatak (, ‘Nunatak Papiya’ \'nu-na-tak pa-'pi-ya\) is the rocky hill rising to 550 m in the south foothills of Detroit Plateau on Nordenskjöld Coast in Graham Land, Antarctica, north of the terminus of Drygalski Glacier. It is surmounting Kladorub Glacier to the northeast and Vrachesh Glacier to the southwest. The nunatak is named after Papiya Peak on the Bulgarian Black Sea coast. Papiya Nunatak is located at , which is 6.44 km southeast of the summit of Ruth Ridge, 6.2 km south-southwest"
"Moriseni Peak Moriseni Peak (, ‘Vrah Moriseni’ \'vr&h mo-ri-'se-ni\) is the mostly ice-covered peak rising to 1800 m in Lassus Mountains, northern Alexander Island in Antarctica. It has steep and partly ice-free south slopes, and surmounts Nichols Snowfield to the east and Narechen Glacier to the northwest. The feature is named after the ancient Thracian tribe of Moriseni inhabiting the Bulgarian Black Sea Coast. The peak is located at , which is 2.7 km south by east of Mount Devol, 8.38 km west-southwest of Rachenitsa Nunatak, 2.53 km north-northeast of Mount Balkanska and 5.55 km east by north of Beagle"
"Mount Moriya Mount Moriya (, ‘Vrah Moriya’ \'vr&h mo-'ri-ya\) is the rounded, ice-covered peak rising to 1700 m in Lovech Heights on Nordenskjöld Coast in Graham Land, Antarctica. It is surmounting Rogosh Glacier to the south and northwest, Zlokuchene Glacier to the east-northeast, and Risimina Glacier to the southeast. The feature is named after the medieval fortress of Moriya in western Bulgaria. Mount Moriya is located at , which is 1.9 km south of Mrahori Saddle, 14.2 km southwest of Tillberg Peak, 15.1 km north-northwest of the ridge forming Cape Fairweather, and 3.17 km east-northeast of Mount Persenk. British mapping"
"Peak. Moriseni Peak Moriseni Peak (, ‘Vrah Moriseni’ \'vr&h mo-ri-'se-ni\) is the mostly ice-covered peak rising to 1800 m in Lassus Mountains, northern Alexander Island in Antarctica. It has steep and partly ice-free south slopes, and surmounts Nichols Snowfield to the east and Narechen Glacier to the northwest. The feature is named after the ancient Thracian tribe of Moriseni inhabiting the Bulgarian Black Sea Coast. The peak is located at , which is 2.7 km south by east of Mount Devol, 8.38 km west-southwest of Rachenitsa Nunatak, 2.53 km north-northeast of Mount Balkanska and 5.55 km east by north of"
"Bebresh Point. British mapping in 1978. Vazharov Peak Vazharov Peak (, ‘Vazharov Vrah’ \v&-'zha-rov 'vr&h\) is the ice-covered peak rising to 700 m in Brugmann Mountains on Liège Island in the Palmer Archipelago, Antarctica. It surmounts Shterna Glacier to the north, Coria Cove to the east-southeast and Sigmen Glacier to the west-southwest. The feature is named after Mihail Vazharov, mechanic at St. Kliment Ohridski base in 1999/2000 and subsequent seasons, and base commander during part of the 2005/06 season. Vazharov Peak is located at , which is 2.14 km west by south of Balkanov Peak, 1.67 km north of Mount"
"Patmos Peak Patmos Peak (, ‘Vrah Patmos’ \'vr&h 'pat-mos\) is the peak rising to 1900 m in the southern portion of Bastien Range in Ellsworth Mountains, Antarctica. The feature has steep and partly ice-free east and south slopes, and surmounts Nimitz Glacier and its tributary Karasura Glacier to the northeast, and upper Minnesota Glacier to the southwest. The peak is named after the medieval fortress of Patmos in Southern Bulgaria. Patmos Peak is located at , which is 4.66 km northwest of Bergison Peak, 13.65 km southeast of Wild Knoll, 9.6 km south of Mount Fisek, and 22.54 km west"
"Coast. British mapping in 1978. Darzalas Peak Darzalas Peak (, ‘Vrah Darzalas’ \'vr&h dar-'za-las\) is the rocky, mostly ice-free peak rising to 1300 m in the south foothills of Detroit Plateau on Nordenskjöld Coast in Graham Land, Antarctica. The peak is situated between Bombardier and Dinsmoor Glaciers, and surmounting Mundraga Bay to the southeast. The peak is named after the Thracian god Darzalas. Darzalas Peak is located at , which is 11.28 km southwest of Trave Peak, 6.16 km north of Mount Elliott, 7.17 km east-northeast of Kavlak Peak, and 29.87 km southeast of Mount Ader in the border area"
"Karia Peak Karia Peak (, ‘Vrah Karia’ \'vr&h 'ka-ri-ya\) is the rounded ice-covered peak rising to 1650 m in the west foothills of Bruce Plateau on Loubet Coast in Graham Land, Antarctica. It has steep and partly ice-free west and south slopes, and surmounts Erskine Glacier to the south and a tributary to that glacier to the west and north. The peak is named after the ancient town of Karia in Northeastern Bulgaria. Karia Peak is located at , which is 5.6 km south-southeast of Mount Lyttleton, 10 km southwest of Purmerul Peak and 13.2 km north-northeast of Mount Bain."
"of Mount Inderbitzen in Sentinel Range. US mapping in 1961 and 1988. Patmos Peak Patmos Peak (, ‘Vrah Patmos’ \'vr&h 'pat-mos\) is the peak rising to 1900 m in the southern portion of Bastien Range in Ellsworth Mountains, Antarctica. The feature has steep and partly ice-free east and south slopes, and surmounts Nimitz Glacier and its tributary Karasura Glacier to the northeast, and upper Minnesota Glacier to the southwest. The peak is named after the medieval fortress of Patmos in Southern Bulgaria. Patmos Peak is located at , which is 4.66 km northwest of Bergison Peak, 13.65 km southeast of"
"Stefan Karadzha Peak Stefan Karadzha Peak (, ‘Vrah Stefan Karadzha’ \'vr&h 'ste-fan ka-ra-'dzha\) is the ice-covered peak of elevation 2050 m in the west foothills of Avery Plateau on Loubet Coast in Graham Land, Antarctica. It has rounded top and steep, partly ice-free west and northeast slopes, and surmounts Erskine Glacier to the northeast, and a tributary to that glacier to the south and west. The peak is named after Stefan Karadzha (Stefan Dimov, 1840-1868), a leader of the Bulgarian liberation movement, in connection with the settlements of Stefan Karadzha in Northeastern and Stefan Karadzhovo in Southeastern Bulgaria. Stefan Karadzha"
"Mount Imhotep. British mapping in 1980 and 2008. Kotlari Peak Kotlari Peak (, ‘Vrah Kotlari’ \'vr&h kot-'la-ri\) is the mostly ice-covered peak of elevation 1200 m in the central part of Gutsal Ridge in Stribog Mountains on Brabant Island in the Palmer Archipelago, Antarctica. It has steep and partly ice-free southwest slopes, and surmounts Balanstra Glacier to the northeast and Hippocrates Glacier to the southwest. The peak is named after the settlement of Kotlari in Southern Bulgaria. Kotlari Peak is located at , which is 4.73 km southeast of Trambesh Peak, 8.64 km west-southwest of Momino Point, 1.88 km northwest"
"Kotlari Peak Kotlari Peak (, ‘Vrah Kotlari’ \'vr&h kot-'la-ri\) is the mostly ice-covered peak of elevation 1200 m in the central part of Gutsal Ridge in Stribog Mountains on Brabant Island in the Palmer Archipelago, Antarctica. It has steep and partly ice-free southwest slopes, and surmounts Balanstra Glacier to the northeast and Hippocrates Glacier to the southwest. The peak is named after the settlement of Kotlari in Southern Bulgaria. Kotlari Peak is located at , which is 4.73 km southeast of Trambesh Peak, 8.64 km west-southwest of Momino Point, 1.88 km northwest of Zelenika Peak and 3 km northeast of"
"summit. The tough, ""Arctic Circle Race"" takes place each winter, with the trail partially overlapping with the ""Polar Route"" from Sisimiut to Kangerlussuaq. The race was inaugurated in 1998, since then becoming an international competition. The ""Polar Route"" passes through the saddle between Nasaasaaq and Alanngorsuaq, and the summit is sometimes visited by way of a variant. Alanngorsuaq Alanngorsuaq is a mountain in the Qeqqata municipality in western Greenland. It is located on the mainland of Greenland in Sisimiut valley, approximately east of the town. Alanngorsuaq is a standalone mountain, separated from the Nasaasaaq massif in the south by a"
"British mapping in 1976. Karia Peak Karia Peak (, ‘Vrah Karia’ \'vr&h 'ka-ri-ya\) is the rounded ice-covered peak rising to 1650 m in the west foothills of Bruce Plateau on Loubet Coast in Graham Land, Antarctica. It has steep and partly ice-free west and south slopes, and surmounts Erskine Glacier to the south and a tributary to that glacier to the west and north. The peak is named after the ancient town of Karia in Northeastern Bulgaria. Karia Peak is located at , which is 5.6 km south-southeast of Mount Lyttleton, 10 km southwest of Purmerul Peak and 13.2 km"
"in 1961 and 1988. Bergison Peak Bergison Peak (, ‘Vrah Bergison’ \'vr&h 'ber-gi-son\) is the peak rising to 2000 m in the southern portion of Bastien Range in Ellsworth Mountains, Antarctica. The feature has steep and partly ice-free west slopes, and surmounts Karasura Glacier to the north, Nimitz Glacier to the northeast, and upper Minnesota Glacier to the southwest. The peak is named after the Thracian fortress of Bergison in Southern Bulgaria. Bergison Peak is located at , which is 25 km northwest of O'Neal Nunataks, 4.66 km southeast of Patmos Peak, and 20.56 km west of Lishness Peak in"
"Balgari Nunatak Balgari Nunatak (, ‘Nunatak Balgari’ \'nu-na-tak 'b&l-ga-ri\) is the mostly ice-fee rocky ridge extending 800 m in east-west direction and 550 m wide, rising to 200 m on the south side of Bongrain Ice Piedmont in northern Alexander Island, Antarctica. It surmounts Lazarev Bay to the south. The nunatak was visited on 3 January 1988 by the geological survey party of Christo Pimpirev and Borislav Kamenov (First Bulgarian Antarctic Expedition), and Philip Nell and Peter Marquis (British Antarctic Survey). On that occasion, a small rocky offshoot situated 360 m southeast of the nunatak’s summit was designated as the"
"Traverse Mountains (Antarctica) The Traverse Mountains of Antarctica are a group of almost ice-free mountains, rising to about , and including McHugo Peak, Mount Noel, Mount Allan and Mount Eissinger, between Eureka Glacier and Riley Glacier, east of Warren Ice Piedmont, in western Palmer Land. These mountains were first photographed from the air on November 23, 1935, by Lincoln Ellsworth and were mapped from these photographs by W.L.G. Joerg. They were first surveyed in 1936 by the British Graham Land Expedition (BGLE) under John Rymill and resurveyed in 1948 by the Falklands Islands Dependencies Survey. The name was first used"
"by BGLE sledging parties because the mountains are an important landmark in the overland traverse from the Wordie Ice Shelf, down Eureka Glacier, to George VI Sound. Traverse Mountains (Antarctica) The Traverse Mountains of Antarctica are a group of almost ice-free mountains, rising to about , and including McHugo Peak, Mount Noel, Mount Allan and Mount Eissinger, between Eureka Glacier and Riley Glacier, east of Warren Ice Piedmont, in western Palmer Land. These mountains were first photographed from the air on November 23, 1935, by Lincoln Ellsworth and were mapped from these photographs by W.L.G. Joerg. They were first surveyed"
"Ptarmigan Traverse Ptarmigan Traverse is an alpine climbing route in the North Cascades of Washington State. The route, from Cascade Pass to Dome Peak, is generally remote, unmarked, and challenging, traversing rugged terrain and several glaciers. The first traverse took 13 days in July 1938. The group consisted of four members of the Ptarmigan Climbing Club: Bill Cox, Calder Bressler, Ray W. Clough, and Tom Myers. The second traverse was in 1953 and consisted of Dale Cole, Bob Grant, Mike Hane, Erick Karlsson and Tom Miller. Miller took high-quality photos of the peaks, valleys, glaciers, and lakes, which were later"
"Venchan Peak Venchan Peak (, ‘Vrah Venchan’ \'vr&h ven-'chan\) is the mostly ice-covered peak rising to 1100 m at the end of a side ridge extending towards Lanusse Bay from Mount Parry in Stribog Mountains on Brabant Island in the Palmer Archipelago, Antarctica. It has steep and partly ice-free southwest, northwest and northeast slopes, and surmounts Djerassi Glacier to the north. Venchan Peak was first ascended by the French mountaineers Mathieu Cortial, Lionel Daudet and Patrick Wagnon on 21 January 2010, as a part of their route to the island’s summit Mount Parry following its northwestern spur and called ""Nouvelle"
"Darzalas Peak Darzalas Peak (, ‘Vrah Darzalas’ \'vr&h dar-'za-las\) is the rocky, mostly ice-free peak rising to 1300 m in the south foothills of Detroit Plateau on Nordenskjöld Coast in Graham Land, Antarctica. The peak is situated between Bombardier and Dinsmoor Glaciers, and surmounting Mundraga Bay to the southeast. The peak is named after the Thracian god Darzalas. Darzalas Peak is located at , which is 11.28 km southwest of Trave Peak, 6.16 km north of Mount Elliott, 7.17 km east-northeast of Kavlak Peak, and 29.87 km southeast of Mount Ader in the border area between Davis Coast and Danco"
"in 2005 and 2009). Spartacus Peak Spartacus Peak (Vrah Spartak \'vr&h spar-'tak\) is an ice-covered 650 m peak in Delchev Ridge, Tangra Mountains, eastern Livingston Island in the South Shetland Islands, Antarctica. The peak overlooks Sopot Ice Piedmont to the northwest and Strandzha Glacier to the east-southeast. The peak was named after the Thracian warrior Spartacus (c. 109-71 BC) whose likely birthplace was in the Sandanski region, in south-west Bulgaria. The peak is located at , which is next southwest of Trigrad Gap, 880 m east-northeast of Delchev Peak, 760 m southwest of Yavorov Peak and 1.42 km south of"
"Trambesh Peak Trambesh Peak (, ‘Vrah Trambesh’ \'vr&h tr&m-'besh\) is the ice-covered peak of elevation 1600 m at the northwest extremity of Gutsal Ridge in Stribog Mountains on Brabant Island in the Palmer Archipelago, Antarctica. It surmounts the heads of Balanstra Glacier to the east and Hippocrates Glacier to the southwest. The peak is named after the town of Polski Trambesh, and the settlements of Gorski Goren Trambesh and Gorski Dolen Trambesh in Northern Bulgaria. Trambesh Peak is located at , which is 5.5 km south of Mount Parry, 4.73 km northwest of Kotlari Peak, 5.74 km north of Mount"