Wetland Code Definitions

This table includes the code definitions for the Attribute field in the National Wetlands Inventory LLWFA dataset. This field consists of several sub-codes that interact with one another to produce thousands of possible values. By joining this table to the NWI LLWFA data for Southeast Michigan (available for download as the "Southeast Michigan Wetlands" layer in SEMCOG's Open Data Portal), it is possible to associate all of the relevant sub-code defiitions with each wetland feature.

Data and Resources

Additional Info

Field	Value
Source	https://maps-semcog.opendata.arcgis.com/datasets/SEMCOG::wetland-code-definitions-2015
Last Updated	November 13, 2026, 18:16 (UTC)
Created	February 16, 2024, 19:52 (UTC)
GUID	https://www.arcgis.com/home/item.html?id=18bccf6e6fb2402383a2d53c21d84e72&sublayer=54
Language
dcat_issued	2022-08-17T20:47:14.000Z
dcat_modified	2025-11-02T06:27:30.749Z
dcat_publisher_name	Southeast Michigan Council of Governments (SEMCOG)
harvest_object_id	d2ccf9cf-cc31-4159-bd81-c1d27b328a8a
harvest_source_id	fc7cd908-5234-4e45-98b6-80f8b12f3f87
harvest_source_title	semcog-hub