Norweigian Mountaineer Claus Helberg Who Helped on Telemark Heavy Water Sabotage

Legendary resistance fighter and mountainman Claus Helberg died Thursday after suffering a heart attack. Active until just last weekend, Helberg made history for his roles in wartime sabotage actions and later for guiding queens on mountain hikes.
Helberg was perhaps best known, and later immortalized by Hollywood, for helping end German plans for using heavy water in Telemark during the war. He and fellow Telemark native Gunnar Soensteby inspired the 1965 film on the sabotage action, "The Heroes of Telemark," starring Kirk Douglas and Richard Harris.
He first joined The Norwegian Mountain Touring Association (DNT) in 1938 and worked tirelessly for the group's efforts to make the mountains more user-friendly and alluring. He helped build trails and mountain cabins and traveled all over the country, giving lectures.
http://www.aftenposten.no/english/local/article.jhtml?articleID=504093
Claus Helberg on web
Telemark Heavy Water on web