Free Images: "bestof:...The east pit at the beginning of excavation operations in the deep crevice below the frozen barrier." - NARA - 294345.tif Scope and content Photograph from"
"The_east_pit_at_the_beginning_of_excavation_operations_in_the_deep_crevice_below_the_frozen_barrier."_-_NARA_-_294345.tif
"The_east_pit_at_the_beginning_of_excavation_operations_in_the_deep_crevice_below_the_frozen_barrier."_-_NARA_-_294345.jpg
"East_side_excavation_operations_looking_south_into_a_deep_rock_crevice._The_lowest_dragline_is_located_near_the_dam..._-_NARA_-_294263.tif
"East_side_excavation_operations_looking_south_into_a_deep_rock_crevice._The_lowest_dragline_is_located_near_the_dam..._-_NARA_-_294263.jpg
"East_side_excavation_area_showing_the_deep_crevice_on_the_left,_east_cofferdam_on_the_right,_conveyor_to_ridge..._-_NARA_-_294264.tif
"East_side_excavation_area_showing_the_deep_crevice_on_the_left,_east_cofferdam_on_the_right,_conveyor_to_ridge..._-_NARA_-_294264.jpg
"View_of_east_side_of_rock_excavation_with_deep_crevice_shown_in_the_center._Sliding_ground_on_the_forebay_slopes..._-_NARA_-_294311.tif
"View_of_east_side_of_rock_excavation_with_deep_crevice_shown_in_the_center._Sliding_ground_on_the_forebay_slopes..._-_NARA_-_294311.jpg
The_Quarterly_journal_of_the_Geological_Society_of_London_(13205987463).jpg
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