This page contains various guidance and resources associated with wetland determinations and delineations in Minnesota. Separate pages are devoted to Hydrology Monitoring & Antecedent Precipitation Analysis and Lateral Effect/Drainage Setback.

Submitting Delineation Reports in Minnesota (pdf) (3/4/15)

Choosing the Appropriate Method (pdf) (7/1/10)

Wetland Delineation Frequently Asked Questions (pdf) (11/12/19)

Offsite Hydrology and Wetland Determinations (pdf) (7/1/16)

    Aerial Imagery - link to aerial imagery from the University of Minnesota. There are many aerial images available via this link from around the state.

Minnesota Delineation Review Checklist (docx) 

Classification of Wetlands and Deepwater Habitats (pdf)

Wetlands in Minnesota (pdf)

HGM Classification System for Minnesota (pdf)

Field Book for Describing and Sampling Soils (pdf)

The following documents are maintained by other entities:

Field Indicators of Hydric Soils (NRCS) - link

Updated NWI for Minnesota and DNR Protected Waters Maps (DNR) - link

National Wetland Plant List (Corps) - link

Web Soil Survey (NRCS) - link





Ken Powell
Wetland Conservation Act Operations Supervisor