The Hoher Sonnblick (also Rauriser Sonnblick) is a glaciated mountain, 3,106 m (AA) high, on the main Alpine chain in the Goldberg Group on the border between the Austrian states of Carinthia and Salzburg. At its summit is the Sonnblick Observatory and the Alpine refuge hut of Zittelhaus.

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Hoher Sonnblick
The Hoher Sonnblick (centre) and Hocharn (right rear); view from the east Zittelhaus (left) and Sonnblick Observatory (right)
Highest point
Elevation	3,106 m (AA) (10,190 ft)
Prominence	3,106-2,857 m ↓ Goldzechscharte
Isolation	2.41 km → Hocharn
Coordinates	47°03′14″N 12°57′23″E
Geography
Hoher Sonnblick Carinthia and Salzburg,  Austria
Parent range	Goldberg Group

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The mountain rises at the head of the Hüttwinkltal valley, the upper part of the Raurisertal, on the Alpine divide. It is a mighty massif with a characteristic rock pyramid on the summit block and a great North Face above Kolm-Saigurn. The highest summit of the Goldberg Group is not the Hoher Sonnblick, however, but the 3,254-metre-high Hocharn to the north.

On the steep summit, at a height of 3,106 metres, is a meteorological observatory, the Sonnblick Observatory, and an Alpine refuge hut, the Zittelhaus (also written Zittlhaus). At a height of 2,718 metres is the Rojacher Hut and at 2,175 metres is the Schutzhaus Neubau. Both huts are managed during the summer months.

On 1 January 1905, a temperature of −37.4 °C (−35.3 °F) was recorded at the summit, the lowest temperature recorded in Austria at that time.^[1]

In the area of the Sonnblick there are historical gold mines, which gave their name to the mountain range around the Sonnblick, the Goldberg Group. Relics of gold digging still exist in the area; Kulm-Saigurn is an ancient mountain mining settlement.^{[citation needed]} At the foot of the Sonnblick it is still possible to pan for gold.^{[citation needed]}

• Liselotte Buchenauer, Peter Holl: Alpine Club Guide Ankogel- und Goldberggruppe. Bergverlag Rudolf Rother, Munich, 1986. ISBN 3-7633-1247-1
• Ingeborg Auer, Reinhard Böhm, Martin Leymüller, Wolfgang Schöner: Das Klima des Sonnblicks – Klimaatlas und Klimatographie der GAW-Station Sonnblick einschließlich der umgebenden Gebirgsregion, ZAMG, Vienna, 2002, ISSN 1016-6254.^[2]
• Alpine Club Map Sheet 42, 1:25,000 series, Sonnblick

Sonnblick has a tundra climate (Köppen ET).