The history of the place was determined for more than 800 years by the silver, lead and zinc mining on the Schneeberg. The mine belonged to one of the highest mining mines in the Alpine region that has long been producing. It was not until 1985 that it was finally closed due to a lack of profitability. The South Tyrolean Mining Museum in the district of Maiern recalls this story.
Until 1929 Ridnaun was an independent municipality.
The most famous person from Ridanna is Maria Fassnauer, the "Ridanna giant". Around 1900, with her traditional height of 2.28 m, she performed throughout Europe as a circus and vaudeville attraction . The important SVP politician Friedl Volgger was also from Ridnaun.
Ridanna has significant tourism . The place offers numerous leisure opportunities throughout the year. In summer, the shelters in the rear Ridanna Valley are a popular destination for hikers and mountaineers. The numerous peaks around the Übeltalferner , the largest glacier in South Tyrol, can be climbed from here. In winter Ridnaun is mainly known to cross-country skiers and biathletes. A modern biathlon center is also located here, which was the venue for the 2011 European biathlon championships .