DAVID NUNUK / SCIENCE PHOTO LIBRARY DAVID NUNUK / SCIENCE PHOTO LIBRARY
Asphalt lake. Workers walking across an asphalt lake. They are walking on the hardened asphalt below the surface of the water. The dark areas on the lake are patches of asphalt that are above the surface of the water. Behind them, recovered asphalt is being loaded into a truck. Work can continue on the lake's asphalt surface for a few hours in the morning, before it begins to melt in the sun. Sir Walter Raleigh is credited with discovering this lake in 1595, which is the largest deposit of asphalt in the world. It covers a surface area of approximately 360, 000 square metres. Asphalt is used in road-surfacing. Photographed at La Brea, Trinidad.
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