Thank you Matthew, I know you know more than I do, but I do see dotted lines on the Norgeskart that I think are trails leading east from Lorresfjorddalen and then north to the road along the Storvatnet and Porsa. Do you know are they hiking trails or work roads…? It seems I could follow those with GPS. Give myself the whole day. Maybe make more than one trip. Expect to be dirty, wet, tired by the end. It would be a unique route. I might look for more of those later in the Lofoten region. What are your thoughts?
~Martin

Hi, There are no rail lines in the north of Norway past Narvik. If you want to reach Porsa/Hammerfest from Alta taking the roads you mention you need to hike you bike over very dangerous terrain (Trollkuken) with unpredictable extreme weather. I would not recommend you try this, Unfortunately the E6 is the only real road to cycle on in areas of the far north. The only gravel you’ll find will lead to deadends (with the exception of the Post road).

I am interested in your thread. This summer I am cycling north into the arctic on the old Post Road, then south along the coast to the fjords. it sounds like I want to avoid the E6 around Alta. I can see on a really detailed map there are roads and rails (from Moen to Porsa) that connect Alta to Hammerfest. Is that a passenger rail, and/or are there alternate ways to get around that gap in what looks like an ideal place to ride (gravel bike). Thanks. Your forum is so helpful!
~Martin