- Pencils
- Jean Henri Gaston Giraud [as Giraud]
- Inks
- Jean Henri Gaston Giraud [as Giraud]
- Colors
- Jean Henri Gaston Giraud [as Giraud]
- Letters
- typeset
- Genre
- wilde westen (western-frontier)
- Characters
- Blueberry
- Reprints
- from Blueberry (Dargaud éditions, 1965 Series) #11
Oorspronkelijke franse titel: "La mine de l'allemand perdu".