National Wetlands Inventory
Ecological Services

Wetlands Mapper

The Wetlands Mapper integrates digital map data with other resource information to produce timely and relevant management and decision support tools. We recommend looking at the following prior to launching a map:

number 1 Please read the DisclaimerData Limitations, Exclusions and Precautions, and the Wetlands Geodatabase User Caution.
number 2

Refer to the following links for documentation and answers to frequently asked questions:

number 3 To open any Mapper; please click on the map icons below (best viewed by maximizing your browser window):

  Wetland Mapper V2

NWI V2 data desktop/mobile viewer;
data last modified 25 May 2016.

New Data Map icon

  Wetland Mapper V1

NWI V1 data desktop viewer;
data last modified 25 May 2016. 

New Data Map icon

Projects Mapper

Recent wetland data additions
and active wetland mapping projects.

New Data Map icon

Please note:

  • For help with the new mobile mapper location function, please read this FAQ.
  • Adobe Flash™ is required to access the Wetlands Mapper V1. Please visit the Adobe Flash Player website ( to download the latest version of the player. Adobe Flash is a trademark from Adobe Systems Incorporated.
Last updated: May 27, 2016