canada okanagan ecoregion - conservationgateway.org fileke carpe nter lake lil l o o e t l a k e...

Methow River

Okan ogan Riv er

Sanpoil River

Colvil le River

Twi s p River

Chew

ack R

iver

Kettle RiverLo

st R

iver

Ste hekin River

Fraser River

F r a nkli n

D. R

oosev

elt L

ake

Ross Lake

Lake Chelan

Omak Lake

CurlewLake

Fraser Ri ver

Kettle R

iver

West Ket tle River

Bridge River

Okanag an Lak

e

Shuswap Lake

Adams L

ake

Kamloops LakeSeton Lake

Carpenter Lake

LillooetLake

BonaparteLake

Ander

son La

ke

Nicola

Lake

Skaha Lake

Osoyoos Lake

Spokane

Omak

Vernon

Lytton

Merritt

Kelowna

Osoyoos

Nespelem

ColvilleRepublic

Winthrop

Oroville

KamloopsLillooet

Penticton

Princeton

Grand Forks

Cache Creek

Similk

ameen

Rive

r

Tho mpson

Rive r

Salmon Arm

TwispInchelium

Tonasket

Okanagan Highlands

Central Okanagan

Thompson Okanagan Plateau

Northern Cascade Ranges

Interior Transition Ranges

124°W

124°W

123°W

123°W

122°W

122°W

121°W

121°W

120°W

120°W

119°W

119°W

118°W

118°W

117°W

117°W

116°W

48°N

48°N

49°N

49°N

50°N

50°N

51°N

51°N

OKANAGAN ECOREGION:Map 3. Terrestrial

EcosectionsPA C

I FI C

OC

EA

N

IDAHO

OREGON

MONTANA

WASHINGTON

CALIFORNIA

BRITISHCOLUMBIA

ALBERTA

CANADAU.S.A.

C A N A D A

U. S. A.

EcosectionCentral OkanaganInterior Transition RangesNorthern Cascade RangesOkanagan HighlandsThompson Okanagan Plateau

The Okanagan Ecoregion is divided into 5sections that roughly match the British ColumbiaEcoregion Classification’s ecoregion-leveldelineation in the Shining Mountains Project,with the exception of the Thompson OkanaganPlateau which was split into two sections. In thecontext of the British Columbia classificationsystem, the term “ecoregion” applies to a lowerlevel of ecological system classification thanhow it is being applied in this ecoregionalassessment context. The term ecoregion isroughly equivalent to the BC classification’secoprovince level of classification. In the BCclassification, ecoprovinces are areas withconsistent climatic relief and regional landforms,and ecoregions are areas with majorphysiographic and minor macroclimaticvariation. The Okanagan Ecoregion falls withinthe Dry Ecodomain which is an extension of thedry climate regime which extends up from theinterior of northern Mexico and the northwesternUnited States. The two most commonlyrecognized climates are arid desert and semiaridsteppe.

Ecoregion Boundary

International BoundaryUS State Boundary

LakeRiver

Transportation

Water

PoliticalPopulated Place

Major HighwayMinor Highway

Scale 1:1,900,0000 5 10 Miles

0 10 20 Kilometres

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.