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Service Description: The Canadian National Wetlands Inventory (CNWI) is a comprehensive, publicly available national geodatabase developed by the Canadian Wildlife Service (CWS) of Environment and Climate Change Canada (ECCC), in collaboration with federal, provincial, and territorial governments, academia, Indigenous groups, and Non-Governmental Organizations (NGOs). It consists of the best available wetland mapping data, along with its metadata, published in a standardized manner.
As of May 2025, the CNWI incorporates 27 source datasets from ten provinces and territories (BC, MB, NB, NL, NS, PE, ON, QC, SK, YT), as illustrated in figure 1 of the CNWI User Manual. Collectively, these datasets comprise approximately 8.02 million wetland polygon features, covering a total area of roughly 74.11 million hectares. For more information on the CNWI and the related database, please refer to the CNWI User Manual and other supporting documents that accompany this publication. The User Manual provides detailed information on how data are collected, managed, and distributed to meet CNWI data standards.
Canadian National Wetlands Inventory - CNWI
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Description: The Canadian National Wetlands Inventory (CNWI) is a comprehensive, publicly available national geodatabase developed by the Canadian Wildlife Service (CWS) of Environment and Climate Change Canada (ECCC), in collaboration with federal, provincial, and territorial governments, academia, Indigenous groups, and Non-Governmental Organizations (NGOs). It consists of the best available wetland mapping data, along with its metadata, published in a standardized manner.As of May 2025, the CNWI incorporates 27 source datasets from ten provinces and territories (BC, MB, NB, NL, NS, PE, ON, QC, SK, YT), as illustrated in figure 1 of the CNWI User Manual. Collectively, these datasets comprise approximately 8.02 million wetland polygon features, covering a total area of roughly 74.11 million hectares. For more information on the CNWI and the related database, please refer to the CNWI User Manual and other supporting documents that accompany this publication. The User Manual provides detailed information on how data are collected, managed, and distributed to meet CNWI data standards.
Copyright Text: Canadian Wildlife Service (CWS)
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Document Info:
Title: Canadian National Wetlands Inventory - CNWI
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Comments: The Canadian National Wetlands Inventory (CNWI) is a comprehensive, publicly available national geodatabase developed by the Canadian Wildlife Service (CWS) of Environment and Climate Change Canada (ECCC), in collaboration with federal, provincial, and territorial governments, academia, Indigenous groups, and Non-Governmental Organizations (NGOs). It consists of the best available wetland mapping data, along with its metadata, published in a standardized manner.As of May 2025, the CNWI incorporates 27 source datasets from ten provinces and territories (BC, MB, NB, NL, NS, PE, ON, QC, SK, YT), as illustrated in figure 1 of the CNWI User Manual. Collectively, these datasets comprise approximately 8.02 million wetland polygon features, covering a total area of roughly 74.11 million hectares. For more information on the CNWI and the related database, please refer to the CNWI User Manual and other supporting documents that accompany this publication. The User Manual provides detailed information on how data are collected, managed, and distributed to meet CNWI data standards.
Subject: 2025 iteration of the Canadian National Wetlands Inventory. Data extents features showing the extent of coverage of each published wetlands dataset visible above 1:500,000 scale, detailed wetlands data is visible below 1:500,000 scale.
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Keywords: Wetlands,Canadian Wildlife Service (CWS),Environment Climate Change Canada (ECCC)
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