By Nick Seaton

This is a discussion of the caves of Minnesota and how the geology of the area effects the nature of the cave development.

2 Comments

  1. Thank you for the excellent overview of caves in Minnesota.
    So interesting to see the extremely straight passages along the eroded joint system. It was also interesting to see the flat layers of interbedded limestone/shale. Your photos gave the full immersion into your experience — very interesting.

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