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Kennecott Bingham Copper Mine in Salt Lake City, Utah.  A large 24/7 copper mine operating in the Southwest of the United States.  Has been in operation for over 120 years.
Towpath along the old Chesapeake and Ohio Canal and the Winchester and Potomac Railway Bridge at Harper's Ferry Maryland and West Virginia and Virginia
View on huge grey concrete wall of Gigerwald Dam with entrance door which is situated in wild narrow mountain Tamina Valley in Bad Ragaz. Picture can be used as background and has a lot of copy space.
Sailor Bar Tunnel, Canada - April 28, 2024: Rainy afternoon in the Coast Mountain Range. Looking south through Sailor Bar Tunnel near the Fraser River.
Old Amagi tunnel
Aerial shot of power plant and industrial buildings on the bank of the Allegheny River in Springdale, a town 18 miles north of Pittsburgh in Allegheny County, Pennsylvania on a Fall day.
New River Gorge National Park - Hawks Nest Horizontal View - 1977. Scanned from Kodachrome 25 slide.
An old abandoned mine located near the Salmon Glacier in northern British Columbia.
Vidraru Dam Lake in Romania . Foggy scenery with mountains and lake . Vidra Lake  Valcea County Romania.
Oil field drills aerial view
Taken beneath the mountain of Tokyo, Japan.
Business failure.
Lock 33 of the C&O Canal is located across from Harpers Ferry at the base of Maryland Heights, with its old lockhouse once housing the Salty Dog Tavern, the ruins of which are pictured here - Harpers Ferry National Historical Park
Canada British Columbia, Fraser canyon highway.
Mina
Mountain road view
Rikuzen-takata where construction is developed to the rehabilitation
Traffic highway under construction
Film camera
Creepy tunnel image ,Monochrome
I took this pic in Japan.
Aerial View of Tunnel with Highway
In Niigata
An old abandoned mine located near the Salmon Glacier in northern British Columbia.
Johannesburg, South Africa – April 02, 2024: Worker using dump truck as mine shaft in industrial setting
Rocky road up to mountain ridge
Dark tunnel in mountain at Keyakidaira station in Kurobe gorge
A highway under construction, including an artificial tunnel, as seen from above
Coastal choshi tunnel ESAN, Hokkaido, Japan
Copper mine in Kastamonu Kure district
Free Images: "bestof:View showing a completed portion of the Pathfinder tunnel at the dam site, near the east portal of the tunnel - NARA - 294359.jpg Scope and content Photograph"
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