Geologic Atlas

Groundwater Resources

The Minnesota Department of Health, Minnesota Well Index website shows the location of wells throughout Minnesota, including Chisago County. The Minnesota Well Index shows the location of known wells and information specific to each well, including the well ID number, name if known, elevation, aquifer name, and depth of the well.

Geologic Atlas

Chisago County, in partnership with the Minnesota Geologic Survey, has developed a Geologic Atlas – a series of maps showing our county's geology, and our mineral and ground water resources.

Atlas Use

Information from the geologic atlas is commonly used in planning and environmental protection programs, as an educational resource, and by industries involved in water and mineral resources. It represents a comprehensive, detailed illustration of the layers of rock, sand and clay between the surface of the ground and the bedrock below. The distribution and character of these layers determine how and where water enters the earth, and where it is stored in aquifers that can supply our needs. Geologic Atlas maps show how water flows underground and can relate land use to water quality.

The Geologic Atlas is useful to those who wish to learn more about the geology of Chisago County. It's a 1 stop, comprehensive collection of geologic information that is useful to anyone with an interest in earth science of Chisago County.

Atlas Development

Part A of the Geologic Atlas is complete. Part A includes the basic geology of Chisago County. Part B, the hydrogeologic atlas, is also complete and shows aquifers, ground water resources, and sensitivity to pollution.


The following is a list of plates (maps) in the Chisago County Geologic Atlas: Part A:

Part B: