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Carving a cirque at the head of an alpine glacier

Sills and dikes in outcrop on road to Diablo Dam.
This image shows sedimentary rock layers.

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Sills and dikes in outcrop on road to Diablo Dam.
This image shows sedimentary rock layers.

Sills and dikes in outcrop on road to Diablo Dam.
This image shows sedimentary rock layers.

Sills and dikes in outcrop on road to Diablo Dam.
This image shows sedimentary rock layers.

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This page was last updated on 5/10/99