Ministry of Environment
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Report: Historical (pre-settlement) Ecosystems of the Okanagan Valley and Lower Similkameen Valley of British Columbia - pre-European contact to the present

Report Documents
Map Plotfiles
Data Files
  • No files of this type available
Digital Map Files
  • TEM 1800  Zipped shapefile  (zip/24.4 Mb)
  • TEM 1938  Zipped shapefile  (zip/24.5 Mb)
  • TEM 2005  Zipped shapefile  (zip/20.5 Mb)
Image Document
  • No files of this type available
Video Files
  • No files of this type available
All Documents

  • No files available


  • If you have any questions on the information presented, or require additional report data or attachments, please contact the Report Contact

A series of maps compare the 1800, 1938 and 2005 ecosystems in the Okanagan and Lower Similkameen Valleys. Much of the gentle slope valley bottom ecosystems have been replaced by urban and agricultural development. Analysis of the areal extent of historical and remaining areas has been done for specific ecosystem types that are important for many species at risk and are themselves ecosystems at risk.

Author:  Ted Lea; BC Environment

Date Published:  Jul 2007

Report ID:  52470

Audience:  Government and Public

The historical ecosystem mapping was done on 1:12,000 scale 1938 air photographs, that were extrapolated back to 1800 ecosystems using ecological attributes, following the Terrestrial Ecosystem Mapping (TEM) methodology (Ecosystems Working Group, 1998). The south Okanagan and Similkameen Valleys were mapped in 2001 and 2002. Mapping for 2005 was extracted from recent (TEM) and 2001 - 2004 orthophotos at a scale of 1:20,000. The Central and North Okanagan areas were begun in 2005 and completed in 2007. Power Point presentation of Pre-Historical Pre-European Settlement in the Okanagan is also included.

Report Type
  Region - Okanagan
  Terrestrial Information - Terrestrial Ecosystem Mapping (TEM)
  Vegetation - Plant Ecology
  Watershed Groups - 310 - Okanagan

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