Where was The Bloody Vultures of Alaska filmed?

1973 film by Harald Reinl

The Bloody Vultures of Alaska (1973) was filmed in Dubrovnik, Plitvice Lakes National Park, Hoher Dachstein and Dachstein Mountains, 4 places named in its Wikipedia article, in Croatia, Austria. Wikidata records no filming location for it at all, so the article is the only recorded source. Each place says where its claim comes from.

See them on the map → Wikipedia Source data