River Valleys Observed By Viking Orbiters
The Viking Orbiters caused a revolution in our ideas about water on Mars. Huge river valleys were found in many areas. They showed that floods of water broke through dams, carved deep valleys, eroded grooves into bedrock, and traveled thousands of kilometers.
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Bahram Vallis, as seen by Viking. Valley is located in Northern Lunae Planum and the Lunae Palus quadrangle. It lies nearly midway between Vedra Vallis and lower Kasei Vallis.
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Streamlined Islands in Maja Valles as seen by Viking showed that large floods occurred on Mars. Image is located in Lunae Palus quadrangle.
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Great amounts of water were required to carry out the erosion shown in this Viking image of a small part of Maja Valles. Image is located in Lunae Palus quadrangle.
Read more about this topic: Lunae Palus Quadrangle
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