Freshwater Atlas Named Watersheds

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Published by the Ministry of Forests, Lands, Natural Resource Operations and Rural Development - GeoBC
Licensed under Open Government Licence - British Columbia

All named watershed polygons

Data and Resources

Dataset Extent

Latitude: 48.0° to 60.0°
Longitude: -139.5° to -113.5°

Additional Information


This spatially-based information is typically used in allocation decisions, boundary definitions, planning processes and environmental monitoring, by internal and external stakeholders.

Lineage Statement

Automated, mathematical and statistical algorithms were applied against the TRIM I stream network and the TRIM I elevation surface model.

Contact Information

NameGeoBC Inquiries (pointOfContact)
OrganizationMinistry of Forests, Lands, Natural Resource Operations and Rural Development

Access & Security

Who can view this dataset? Public
Who can download this dataset?Public

Metadata Information

Record Published 2011-03-09
Record Last Modified 2021-05-01
Resource Status onGoing

Object Description


Comments: Contains all watersheds of named rivers and the associated name details. There are approximately 12 000 named watersheds in BC. This contains multipart geometries. Spatial gemetry: multipart polygon

Column Name Short Name Data Type Data Precision Comments
NAMED_WATERSHED_ID NMDWTRSHDD NUMBER 18 A unique identifier for each watershed in the layer.
GNIS_ID GNIS_ID NUMBER 10 The BCGNIS (BC Geographical Names Information System) feature id associated with the watershed.
GNIS_NAME GNIS_NAME VARCHAR2 80 The BCGNIS (BC Geographical Names Information System) name associated with the GNIS feature id (an English name was used where available, otherwise another language was selected).
BLUE_LINE_KEY BLLNK NUMBER 10 The blue line key associated with the named stream.
WATERSHED_KEY WTRSHDK NUMBER 10 The watershed key associated with the named stream.
FWA_WATERSHED_CODE FWWTRSHDCD VARCHAR2 143 The watershed code associated with the named stream.
STREAM_ORDER STRMRDR NUMBER 10 The maximum order associated with the watershed key of the named stream.
STREAM_MAGNITUDE STRMMGNTD NUMBER 10 The maximum magnitude associated with the watershed key of the named stream.
AREA_HA AREA_HA NUMBER 38 Area of the watershed, in hectares.
FEATURE_CODE FTRCD VARCHAR2 10 FEATURE CODE contains a value based on the Canadian Council of Surveys and Mapping's (CCSM) system for classification of geographic features.
GEOMETRY GEOMETRY SDO_GEOMETRY 1 GEOMETRY is the column used to reference the spatial coordinates defining the feature.
OBJECTID OBJECTID NUMBER 38 OBJECTID is a required attribute of feature classes and object classes in a geodatabase.
SE_ANNO_CAD_DATA BLOB 4000 SE_ANNO_CAD_DATA is a binary column used by spatial tools to store annotation, curve features and CAD data when using the SDO_GEOMETRY storage data type.
FEATURE_AREA_SQM AREA_SQM NUMBER 19 FEATURE_AREA_SQM is the system calculated area of a two-dimensional polygon in square meters
FEATURE_LENGTH_M FEAT_LEN NUMBER 19 FEATURE_LENGTH_M is the system calculated length or perimeter of a geometry in meters