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Old 10-17-2018, 03:58 PM
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rickstef rickstef is offline
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This is what you want Gary

https://pubs.er.usgs.gov/publication/ofr97536A
https://www.nps.gov/subjects/caves/k...aphy-model.htm

I have built the colored version that is available at the NPS site, it is a different building method than what we are used to, but overall, the model is a good one, and depicts what the various bits of Karst topography are
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