Uploaded April 2026 | Updated September 2026, 17 hours ago

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0:01 Welcome
2:05 Part A: Geologic atlas
40:15 Part B: Groundwater atlas
2:09:55 Exercise 1: Hazardous spill
2:25:08 Exercise 2: Well location search
2:42:01 Closing

Learn about Houston County groundwater and discover how the area’s distinctive karst terrain impacts the underlying aquifers. Recorded February 25, 2026, in Caledonia, Minnesota, in partnership with the Minnesota Geological Survey and Houston County.

Access the Houston County Groundwater Atlas
dnr.state.mn.us/waters/groundwater_section/mapping/county-geo-atlas.html#H

Contact our program with questions or feedback
county.groundwater.atlas.dnr@state.mn.us

Curious about karst?
youtube.com/watch?v=vAOcqHgwTfg

Partial funding for this project was provided by the Minnesota Environment and Natural Resources Trust Fund as recommended by the Legislative-Citizen Commission on Minnesota Resources and by the Clean Water Fund, which receives 33% of the sales tax revenue from the Clean Water, Land and Legacy Amendment, approved by voters in November 2008.