1999, 14 days
I've translated the complete route description from the German in this book:
There's a Microsoft Word document with my translation of the route description (25 pages). I can't make it available for downloading, because that would be a breach of copyright. But if you have a copy of the book and you'd like a copy of my translation, see the index page for my address.
A short sample of the translation document (reduced scale)
Sunset on the rocks, from near Rifugio Boé on Alta Via 9 (August
1999)