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Lucky Friday Mine

Isometric projection diagram of a typical deep silver mine in northern Idaho, showing surface operations, main shaft and tunnels. The Lucky Friday Mine (Hecla Mining Co.) has deepened its operations since this drawing was made to over 7,000 ft.
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Titre:
Lucky Friday Mine
Légende: Voir la traduction automatique
Isometric projection diagram of a typical deep silver mine in northern Idaho, showing surface operations, main shaft and tunnels. The Lucky Friday Mine (Hecla Mining Co.) has deepened its operations since this drawing was made to over 7,000 ft.
Crédit:
Album / Science Source / Theodore Clutter
Autorisations:
Modèle: Non - Propriété: Non
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Taille de l'image:
2433 x 3289 px | 22.9 MB
Taille d'impression:
20.6 x 27.8 cm | 8.1 x 11.0 in (300 dpi)
Mots clés: