Purpose

To  show the location and names of the  major rivers, streams, and lakes within the Chilliwack River Watershed.

 Data source(s)

B.C. Ministry of Environment, 2001.  Fraser Valley Regional District, December 31, 2005.  Washington State University, 1999.  Fisheries and Oceans Canada, Habitat Enhancement Branch, GIS Unit, November 2004.  Provincial TRIM, 1995.

Explanation

This map shows generalized base mapping for the watershed.  Many sources of data were used to provide the best representation of watercourses and the location of watercourses have not necessarily been subject to ground-truthing.   As a result, there were a number of challenges associated with integrating the data:

• Data was collected in different years and seasons,

• Data was collected using different methodologies,

• Line work exists from two different sources for the same watercourse, showing conflicts in location,

• Database information was collected with different criteria than for this atlas and was interpreted to fit into agreed upon categories,

• GIS data exists in different file formats, which can affect spatial accuracy.

 These limitations should be considered when using this data and ground-truthing should be undertaken to obtain more accurate mapping.

Disclaimer

The maps included in the Chilliwack River Watershed Atlas are not intended to be legal documents and it is important that users understand their limitations.  The data has come from many different sources collected at different times and therefore there are variations in the information provided.  In addition, the spatial accuracy of both resource and cadastral information will vary.  The maps are intended as a general guide that will need to be refined and updated.   Users are encouraged to contact the originator of the data in order to obtain up to date or more detailed mapping if required.  

Contacts

For more information about this project or the data in this map, please contact:

Lance Lilley	Shannon Sigurdson
Planning Fraser Valley Regional District Chilliwack, BC        llilley@fvrd.bc.ca	GIS Fraser Valley Regional District Chilliwack, BC ssigurdson@fvrd.bc.ca

 

View Watercourses Map