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results 1-20 of 42 item(s)  page 1 of 3 : ( <<  1  2  3  >> ) :: previous : next
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Bench drilling crew in tunnel, Gorge Dam, November 7, 1923
1. Bench drilling crew in tunnel, Gorge Dam, November 7, 1923
Early test drilling operations at the proposed site of Gorge Dam, October 17, 1919
2. Early test drilling operations at the proposed site of Gorge Dam, October 17, 1919
Drilling in the center heading above cross cut 9, February 1, 1928
3. Drilling in the center heading above cross cut 9, February 1, 1928
Workers with drilling equipment, Scenic, January 19, 1928
4. Workers with drilling equipment, Scenic, January 19, 1928
Workers drilling the bench at Camp 11, 1927
5. Workers drilling the bench at Camp 11, 1927
October 31, 1911 Page one New boat for straits route Encouraging reports--declard that Irondale
6. October 31, 1911 Page one
New boat for straits route
Encouraging reports--declard that Irondale (steel) plant will resume operations in short time
Those in charge of oil boring in Leland Valley confident of success
Workers drilling in the tunnel, Berne, April 27, 1928
7. Workers drilling in the tunnel, Berne, April 27, 1928
Workers drilling in the Mill Creek shaft, ca. 1927
8. Workers drilling in the Mill Creek shaft, ca. 1927
Workers with drills, interior of tunnel at Berne, December 7, 1926
9. Workers with drills, interior of tunnel at Berne, December 7, 1926
Men sharpening drill at the west portal, Scenic, 1926
10. Men sharpening drill at the west portal, Scenic, 1926
Workers drilling in tunnel interior, west portal, Scenic, ca. 1926
11. Workers drilling in tunnel interior, west portal, Scenic, ca. 1926
Stone quarry showing man drilling rock, Index, ca. 1910
12. Stone quarry showing man drilling rock, Index, ca. 1910
Air drill in use at the Miller Logging Company near Sultan, ca. 1930
13. Air drill in use at the Miller Logging Company near Sultan, ca. 1930
Snow Dome, Mount Olympus showing glacier research in progress, Olympic National Park, date unknown
14. Snow Dome, Mount Olympus showing glacier research in progress, Olympic National Park, date unknown
Men drilling in the new Cascade Tunnel, 1927
15. Men drilling in the new Cascade Tunnel, 1927
Drilling an oil well, probably on the Olympic Peninsula
16. Drilling an oil well, probably on the Olympic Peninsula
Drilling station in the tundra of the Komi Republic
17. Drilling station in the tundra of the Komi Republic
Diamond drill, an early piece of machinery used at Ruby Dam site, June 29, 1919
18. Diamond drill, an early piece of machinery used at Ruby Dam site, June 29, 1919
Detail of diamond drill used in early Skagit exploration work, June 29, 1919
19. Detail of diamond drill used in early Skagit exploration work, June 29, 1919
Construction of tunnel shaft no. 2 with view of concrete mixer and steam drills, February 2, 1911
20. Construction of tunnel shaft no. 2 with view of concrete mixer and steam drills, February 2, 1911
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results 1-20 of 42 item(s)  page 1 of 3 : ( <<  1  2  3  >> ) :: previous : next
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