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OKANAGAN ECOREGION:Map 1. Ecoregions of
the Pacific Northwest - Southern British Columbia
Scale 1:5,000,000
CANADAU.S.A.
Okanagan
Canadian Rocky Mountains
Columbia Plateau
Middle Rockies - Blue Mountains
North Cascades
Central Interior
Boreal Plains
Fescue-Mixed Grass PrairieNorthern Great Plains Steppe
S.E. Alaska - B.C. Coastal Forest and Mountains
Northwest Coast
Willamette Valley - Puget T rou gh - Georgia Basin
West C ascades
Eas t C ascades
Okanagan EcoregionInternational BoundaryState and Provincial Boundary
Washington
Oregon
Idaho
British Columbia Alberta
Canada
United States
Mexico
Montana
0 50 10025 Miles
0 70 14035 Kilometres
The boundary utilized for the OkanaganEcoregional Assessment corresponds veryclosely with the British Columbia EcoregionClassification system’s delineation of theSouthern Interior Ecoprovince (SIR) (Demarchi,1996). The boundary for the SIR was extendedinto Washington State as part of the ShiningMountains Project, which was developed by theprovincial government with numerous federal,provincial and state government, academic, andFirst Nations/tribal partners in British Columbia,Alberta, Yukon, Alaska, Washington, Idaho, andMontana in the 1990s. The purpose of theShining Mountains Project was to determine theextent and distribution of regional and zonalecosystems which British Columbia shared withits neighboring jurisdictions (MSRM, 2005). InWashington, the boundary also corresponds withThe Nature Conservancy’s (TNC) ecoregionframework based on Bailey’s (1994) ecoregionmap for the United States. Ecoregions are largeareas of land or water defined by their distinctclimate, geology, and native species.
The Nature ConservancyWashington Chapter
October 2006
Projection: BC Albers Equal Area
Sources:BC Ministry of Agriculture and Lands,Nature Conservancy of Canada,The Nature Conservancy,WA Dept. of Fish and Wildlife,WA Dept. of Natural Resources,USGS, ESRI
B.C. ConservationData Centre
The Partners (NCC, TNC, WDFW, WNHP, CDC, NatureServe) do not verify orguarantee the accuracy, reliability, or completeness of any data provided. ThePartners provide this data without any warranty of any kind whatsoever, eitherexpress or implied. The Partners shall not be liable for incidental,consequential, or special damages arising out of the use of any data provided.