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Siegfried Mühlberger

Siegfried Mühlberger was a mineral collector and placer gold miner in Bischofshofen, Austria. In 1964 Raimund Tannenberger established a gold washing plant in Bischofshofen on the Salzach River, in a quarry owned by the Ehrensberger Company—formerly a producer of crushed stone. With the arrival of Siegfried Mühlberger in 1968, activity was expanded to include the Kössner Huber gravel works company in Schwarzach, where a second washing plant was installed. The gold content of the ores worked was 0.5 grams per ton, though it is unknown how much gold in total was recovered. In 1972 and 1974, at nearby Freischurfen on the Salzach River, the "Susi" and "Susi II" mines were opened, with a surface extent of 5.2 and 7 hectares respectively. In 1984 Tannenberger left the company, and the production of gold was thereafter exclusively overseen by Mühlberger and his family members until 1994.
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WILSON, Wendell E. (2019)
Mineralogical Record
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