Hessdalen is a small valley in the central part of
Norway, where the nearest big town seems to be
Trondheim. From
1981 to
1984, a big
UFO flap was witnessed in the valley, with some 20 or more observations a week, most of which reported bright lights and
radar targets being spotted.
In 1983,
Project Hessdalen was estabilished in order to document and study what was going on. The project still continues and a lot of information was and is being published. It's still not clear what those
UFO lights might be, but they have plenty of pictures and movies to show. And hey, they have a web site @ http://www.hessdalen.org