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Oil Shale or Tar Sands

North AmericaEconomicPhysical Environment

Locations of major sedimentary rock formations and loose sands containing petroleum in North America

A map of North America highlighting oil shale or tar sands areas shaded in red. The region along the boundary of Utah in the northeast along with Wyoming is shaded. The northern region of Alberta is also shaded.

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Oil Shale or Tar Sands	U.S. Presidential Election by State: Electoral Votes, 2012	Areas at Risk of Soil Degradation				Netflix Subscribers
Oil Shale or Tar Sands	Value	Areas of serious concern	Areas of some concern	Stable terrain	Nonvegetated land	Class	Rank	Value
11.5%		23.0%	35.0%	31.0%	10.1%

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