Lake Flood Elevations Online

The Lake Flood Elevations Online (LFEO) viewer is a web-based interactive map tool for users to view flood elevations for lakes and other basins in Minnesota.

Not all lakes and basins have flood elevations determined. Information available to the public is only shown if it is based on current effective FEMA flood studies or other sources determined by Minnesota DNR (MNDNR) to be best available data that meets minimum quality standards.

*Local ordinances use higher flood elevations than shown in this application. State minimum elevation requirements for new/expanded structures add at least one foot to the 100-year flood elevation. Local ordinances may be more restrictive than state minimums. Consult your local zoning authority – your city, if within city limits, or your county or township if outside city limits – to ensure you comply with local requirements.

We strive to have this resource as complete and accurate as possible. If you have questions, see errors, or are aware of data that should be available in this online viewer, please contact Minnesota DNR Floodplain Program staff.

Disclaimer: The State of Minnesota, Department of Natural Resources, Ecological and Water Resources Division assumes no responsibility for and disclaims all liability for any typographical or other errors on this site. The DNR may make changes to the lake floodplain elevations at any time and without notice.

Not all lakes and basins have flood elevations listed. Information is only shown if it is based on current effective FEMA flood studies or other sources determined by Minnesota DNR (MNDNR) to be best available data that meets minimum quality standards.

If no flood elevation information is shown in this viewer, it is possible that MNDNR has study information that can be used, depending on the situation. Check with DNR Area Hydrologists or DNR Floodplain Program staff.

For detailed information on navigation and the data in this application, see Frequently Asked Questions.

Not all lakes and basins have flood elevations listed. Information for each basin is displayed as follows:

  • Basins shown as dark blue have information that is available to the public. The information is based on current effective FEMA flood studies or other sources determined by Minnesota DNR (MNDNR) to be best available data that meets minimum quality standards.
  • Basins shown as light blue have information that is not available to the public. The information is from local (i.e., city and watershed districts), state and non-FEMA federal sources that is not fully vetted by DNR Floodplain Program staff and is based on more approximate study methods.
  • Basins with no color have no information. These basins don’t have information because they have not been mapped by FEMA or have not been a priority for study.

For detailed information on navigation and the data in this application, see Frequently Asked Questions.

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Lake Flood Elevations Online