Excavation Of Indian Mound, 1850
Science Source
Excavating Coptic Village, Egypt
Brian Brake
Coal Surface Mine
Inga Spence
Paleontologists Excavating Mammoth Bones
E.r. Degginger
Leakey At The Olduvai Gorge
Science Source
Excavation Of Akrotiri, Greece #3
Gianni Tortoli
Excavations At Olduvai Gorge, Tanzania
Des Bartlett
Shards Of Ancient Greek Vase
Gianni Tortoli
Excavation Of Akrotiri, Greece #1
Gianni Tortoli
Excavation Of Akrotiri, Greece #2
Gianni Tortoli
Excavation Of Akrotiri, Greece
Gianni Tortoli
Trench Dug By Spirit On Mars
NASA / JPL-Caltech
Surface Coal Mine
Inga Spence
Coal Surface #1
Inga Spence
Terrace House Excavation, Ephesus
Theodore Clutter
Dental Picks Are Used To Extricate
Ted Kinsman
Dinosaur Excavation Site
Science Source
Natural Gas Pipeline Construction
Inga Spence
Surface Coal Mine #1
Inga Spence
Well Drilling
Inga Spence
Cross-section Of Lead Mine With Fossil
Wellcome Images
Nyc Subway Construction, 1926
Science Source
Cliff Palace, Mesa Verde
David Roberts / Nature's Images
Apatosaurus Leg Bone
A.b. Joyce
Deinotherium Remains
Des Bartlett
Exhumation Of The Mastodon
Science Source
Dinosaur National Monument
Harold Brodrick/Science Source
Dinosaur National Monument Park
James L. Amos
Dinosaur National Monument Park #1
James L. Amos
Excavator At Work
Inga Spence
Snapping Turtle Chelydra Serpentina
Millard H. Sharp
Guatemala Excavation
George Holton
Louis Leakey At Olduvai Site #2
Des Bartlett
Hallstatt Tombs, Prehistoric Cemetery
Science Source
Dinosaur National Monument Park #2
James L. Amos
Engineer With Coal Sample
Inga Spence
Cliff Palace, Mesa Verde #1
David Roberts / Nature's Images
Tools Used To Excavate Dinosaur Fossils #1
Ted Kinsman
Hand Brush Next To Un-excavated Fossil
Ted Kinsman
Tools Used To Excavate Dinosaur Fossils #2
Ted Kinsman
Tools Used To Excavate Dinosaur Fossils
Ted Kinsman