Southern Interior Ecoprovince - Sierra Club BC
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Southern Interior

Southern Interior

The whole Southern Interior is the territory of Okanagan, Nlaka’pamux, Secwepemc, St’at’imc and Kalispell First Nations. It is in the rainshadow of the Coast Mountains in B.C. and the Cascade Mountains in Washington. It is warm and dry in the summer. In winter it gets very cold, but only the mountains and highlands get a lot of snow.

The landscape has dry grasslands, forests, deep river valleys and large lakes. Ponderosa pine and Douglas fir forests cover much of the area, providing homes for several rare types of bats and other mammals. Elsewhere in this ecoprovince you can find rocky hills, cliffs and even a desert.

The Trans Mountain pipeline, which carries diluted bitumen from Alberta, runs through the Southern Interior ecoprovince. This pipeline disturbs fragile grassland ecosytems and endangers the waterways of the region to oil spills. To learn how you can take action on this issue, visit our biodiversity and climate campaign pages.

The major cities are Kamloops, Vernon, Kelowna and Penticton.

Species of the Southern Interior

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American Kestrel

American Kestrel

The American kestrel is the smallest falcon in North America and weighs only 3 or 4 ounces.

Bald Eagle

Bald Eagle

Bald eagles are found all over B.C. and the U.S. The largest populations in North America live in B.C. and Alaska.

Balsamroot

Balsamroot

Balsamroot is a relative of the sunflower. Its leaves are coarse and arrow-shaped, and a single plant can have many yellow flowers.

Beaver

Beaver

The beaver possesses many gifts! They are adept at swimming, building, and tree chomping.

Big Sagebrush

Big Sagebrush

Big sagebrush can be thought of as a protector plant for many understory community members.

Bighorn Sheep

Bighorn Sheep

The bighorn sheep are important primary consumers in the food chain. They are vegetarians, eating grasses, bushes and leaves.

Black Bear

Black Bear

Black bears and Pacific salmon play an important part in maintaining our forest ecosystems.

Black Cottonwood

Black Cottonwood

Black cottonwood gets its name from their fluffy white seeds, which look like cotton. These seeds can be seen floating through the air in late spring.

Black Huckleberry

Black Huckleberry

Black Huckleberry is an important food in many First Nations communities. These berries can be eaten fresh, cooked, or dried into cakes.

Boreal Chickadee

Boreal Chickadee

Boreal chickadees are an important indicator species of boreal ecosystems!

Boreal Owl

Boreal Owl

Boreal owls are gifted with incredible hearing. The position of their ears allows them to locate their prey.

Bunchberry

Bunchberry

Bunchberries flower in May and June, later in the Northern Mountains and frequently flower a second time in the fall.