Improving Water Quality and Quantity in the Karst Topography of the Upper Iowa Watershed

Thursday, February 4, 2021 - 1:00pm

 Iowa Learning Farms, in partnership with the Iowa Nutrient Research Center and Conservation Learning Group, is hosting a free virtual field day on the challenges of improving water quality and quantity management in the karst topography of the Upper Iowa Watershed on Thursday, Feb. 4 at 1 p.m. CST.

Presenters include Matt Frana, Upper Iowa Watershed project coordinator, and Winneshiek County landowners Tom and Maren Beard.

“The karst topography in northeast Iowa creates some unique challenges when planning for water detention project sites,” said Frana. “Shallow depth to bedrock, easily dissolvable bedrock, highly fractured bedrock and sinkholes can become problematic if water is pooled above or near them.” Karst terrain is characterized by the presence of easily dissolved bedrock (limestone and dolomite) near the ground surface, according to the Iowa Department of Natural Resources.

To participate in the live virtual field day at 1 p.m. CST on Feb. 4, click this URL,, or visit and click “Join Live Virtual Field Day”.

Participate by dialing +1 312-626-6799 or +1 646-876-9923. The meeting ID is 914 1198 4892.

The field day will be recorded and archived on the ILF website so that it can be watched at any time. The archive will be available at