Baculite Mesa, Pierre Shale, Pueblo, CO

Baculite Mesa, Pierre Shale, Pueblo, CO - 5/17/2003

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In some places, the Pierre Shale erodes away leaving concretion "bridges" exposed. Rusty Zone or Tepee Zone of Pierre Shale.

In some places, the Pierre Shale erodes away leaving concretion "bridges" exposed. Rusty Zone or Tepee Zone of Pierre Shale.

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In some places, the Pierre Shale erodes away leaving concretion "bridges" exposed. Rusty Zone or Tepee Zone of Pierre Shale.