Ahlmann Ridge, also known as Ahlmannryggen, is a broad, mainly ice-covered ridge, about 110 km (70 mi) long, surmounted by scattered, low peaks. It rises between Schytt Glacier and Jutulstraumen Glacier and extends from Borg Massif northward to Fimbul Ice Shelf in Queen Maud Land. The area was first photographed from aircraft of the Third German Antarctic Expedition (1938–39) and peaks in this vicinity were roughly plotted. The Stein Nunataks and Witte Peaks, named by the German Antarctic Expedition, appear to coincide with the northeast part of the Ahlmann Ridge. The feature was mapped in detail from surveys and air photos by the Norwegian-British-Swedish Antarctic Expedition (NBSAE) (1949–1952) and air photos by the Norwegian expedition (1958–59). Named for Hans Wilhelmsson Ahlmann, chairman of the Swedish committee for the NBSAE.
Raudberg in the Norwegian language means Red Mountain. Three terrain features in East Antarctica bear the name Raudberg:
- Raudberg Pass
- Raudberg Valley
- Raudberget
Wilson Saddle is a snow saddle between Kjølrabbane Hills and Aurho Peak in the southwest part of Ahlmann Ridge in Queen Maud Land. Mapped by Norwegian cartographers from surveys and air photos by Norwegian-British-Swedish Antarctic Expedition (NBSAE) (1949–52) and named for Ove Wilson, medical officer with NBSAE.
Bråpiggen Peak is one of the ice-free peaks at the south side of Antarctica's Frostlendet Valley, situated 1 nautical mile (2 km) south of Friis-Baastad Peak in the Borg Massif of Queen Maud Land. It was mapped by Norwegian cartographers from surveys and from air photos by the Norwegian–British–Swedish Antarctic Expedition (1949–52) and named "Bråpiggen".
Urfjell Cliffs is a line of rock cliff and spurs trending southwest for 10 nautical miles (18 km) from Urfjelldokka Valley, forming a part of the Kirwan Escarpment in Queen Maud Land. Mapped by Norwegian cartographers from surveys and air photos by Norwegian-British-Swedish Antarctic Expedition (NBSAE) (1949–52) and additional air photos (1958–59). They gave the Urfjell.
Ovbratten Peak is a steep, pyramidal rock peak about 2 nautical miles (3.7 km) southwest of Hogfonna Mountain, in the Borg Massif of Queen Maud Land. Mapped by Norwegian cartographers from surveys and air photos by Norwegian-British-Swedish Antarctic Expedition (NBSAE) (1949–52) and named Ovbratten.
Ove Peak is the northernmost peak in the group at the west side of Wilson Saddle, near the southwest end of Ahlmann Ridge in Queen Maud Land. Mapped by Norwegian cartographers from surveys and air photos by Norwegian-British-Swedish Antarctic Expedition (NBSAE) (1949–52) and named for Ove Wilson, medical officer with NBSAE.
Svea Glacier is a broad glacier flowing north between the Sverdrup and Gjelsvik Mountains in Queen Maud Land. Photographed from the air by the German Antarctic Expedition (1938–39). Mapped by Norwegian cartographers from surveys and air photos by Norwegian-British-Swedish Antarctic Expedition (NBSAE) (1949–52) and air photos by the Norwegian expedition (1958–59) and named Sveabreen.
Kvervelnatten Peak is a peak 2 nautical miles (4 km) southwest of Svartbandufsa Bluff in the Kirwan Escarpment of Queen Maud Land, Antarctica. It was mapped and named by Norwegian cartographers from surveys and air photos by the Norwegian–British–Swedish Antarctic Expedition (1949–52) and additional air photos (1958–59).
Portalen Pass is a mountain pass between Domen Butte and Pilarryggen, in the Borg Massif of Queen Maud Land. Mapped by Norwegian cartographers from surveys and air photos by Norwegian-British-Swedish Antarctic Expedition (NBSAE) (1949–52) and named Portalen.
Egil Peak is a peak, 2,640 metres (8,660 ft) high, at the east side of Isingen Mountain, in the Sverdrup Mountains of Queen Maud Land. It was photographed from the air by the Third German Antarctic Expedition (1938–39). It was mapped by Norwegian cartographers from surveys and air photos by the Norwegian–British–Swedish Antarctic Expedition (NBSAE) (1949–52) and from air photos by the Norwegian expedition (1958–59), and was named for Egil Rogstad, chief radio operator with the NBSAE.
Gordon Peak is a rock peak marking the northwest end of the Robin Heights in the Sverdrup Mountains of Queen Maud Land, Antarctica. It was photographed from the air by the Third German Antarctic Expedition (1938–39). It was mapped by Norwegian cartographers from surveys and air photos by the Norwegian–British–Swedish Antarctic Expedition (NBSAE) (1949–52) and from air photos by the Norwegian expedition (1958–59). It was named for Robin de Quetterville Gordon, third in command and physicist with the NBSAE.
The Gösta Peaks are the northeastern peaks of the Liljequist Heights, in the southern part of Ahlmann Ridge in Queen Maud Land, Antarctica. They were mapped by Norwegian cartographers from surveys and air photos by the Norwegian–British–Swedish Antarctic Expedition (NBSAE) (1949–52) and from air photos by the Norwegian expedition (1958–59), and were named for Gösta Hjalmar Liljequist, a Swedish meteorologist with the NBSAE.
Slettfjellnutane Peaks are two small rock peaks about 2 nautical miles (3.7 km) north of Slettfjell on the Ahlmann Ridge in Queen Maud Land. Mapped by Norwegian cartographers from surveys and air photos by Norwegian-British-Swedish Antarctic Expedition (NBSAE) (1949–52), and named Slettfjellnutane because of their proximity to Slettfjell.
Slettfjellklumpen Spur is a rock spur forming the north end of Slettfjell, on the Ahlmann Ridge in Queen Maud Land. Mapped by Norwegian cartographers from surveys and air photos by Norwegian-British-Swedish Antarctic Expedition (NBSAE) (1949–52), and named Slettfjellklumpen in association with Slettfjell.
Soyla Peak is a small peak just north of Domen Butte in the Borg Massif of Queen Maud Land. Mapped by Norwegian cartographers from surveys and air photos by Norwegian-British-Swedish Antarctic Expedition (NBSAE) (1949–52) and named Soyla.
Spiret Peak is a rock peak in the northwest part of Borg Mountain, in the Borg Massif of Queen Maud Land. Mapped by Norwegian cartographers from surveys and air photos by Norwegian-British-Swedish Antarctic Expedition (NBSAE) (1949–52) and named Spiret.
Vestvorren Ridge is the western of two rock ridges which trend northward from the Neumayer Cliffs in Queen Maud Land. It was photographed from the air by the German Antarctic Expedition (1938–39). It was then mapped by Norwegian cartographers from surveys and air photos by Norwegian-British-Swedish Antarctic Expedition (NBSAE) (1949–52) and air photos by the Norwegian expedition (1958–59) and named Vestvorren, meaning "the west jetty."
The Liljequist Heights are the heights about 2 nautical miles (4 km) south of the Grunehogna Peaks, in the Ahlmann Ridge of Queen Maud Land, Antarctica. They were mapped by Norwegian cartographers from surveys and air photos by the Norwegian–British–Swedish Antarctic Expedition (NBSAE) (1949–52) and air photos by the Norwegian expedition (1958–59). The heights are named for Gösta Hjalmar Liljequist, a Swedish meteorologist with the NBSAE.
