Tin Bider crater

Tin Bider (Arabic: تن بدر‎‎) is an impact crater that sits in dry, rugged terrain in Algeria.^[1][2] The crater was formed in the last 70 million years, perhaps in the late Cretaceous or early Tertiary Period.^[2] Spanning 6 kilometres, the crater sits at the southern end of a range of hills.^[2] The elevated position and concentric rings of Tin Bider suggest that its structure is complex.

• 
  Landsat image of the Tin Bider crater; screen capture from NASA World Wind.
• 
  Natural-colour satellite image of Tin Bider Crater.

References

Coordinates: 27°36′7″N 5°6′44″E / 27.60194°N 5.11222°E / 27.60194; 5.11222

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