We were recently hired by John Ackerman to construct a 30" diameter access "well" to a
cave that ran 180'+/- below ground surface in Northern Iowa. This is
reported to be the 17th largest cave in the United States and access to it had
been extremely limited prior to the construction of this passage.
Here are some pictures of this amazing project (click on any picture to
enlarge)
Moving from
the Rochester area and need a well driller?