Fraser Plateau and Basin complex

{{Short description|Temperate coniferous forest ecoregion in British Columbia, Canada}}

{{Refimprove|date=December 2007}}

{{Infobox ecoregion

| name = Fraser Plateau and Basin complex

| country = Canada

| state = British Columbia

| image = Steel-50174.jpg

| image_size = 300px

| caption = Forests of the Fraser Plateau southwest of Williams Lake, British Columbia

| border = British Columbia mainland coastal forests

| border1 = Cascade Mountains leeward forests

| border2 = Central British Columbia Mountain forests

| border3 = North Central Rockies forests

| border4 = Northern transitional alpine forests

| border5 = Okanagan dry forests

| rivers = Fraser River

| bird_species = 172

{{cite book |last1 = Hoekstra |first1 = J. M. |last2 = Molnar |first2 = J. L. |last3 = Jennings |first3 = M. |last4 = Revenga |first4 = C. |last5 = Spalding |first5 = M. D. |last6 = Boucher |first6 = T. M. |last7 = Robertson |first7 = J. C. |last8 = Heibel |first8 = T. J. |last9 = Ellison |first9 = K. |title = The Atlas of Global Conservation: Changes, Challenges, and Opportunities to Make a Difference |publisher = University of California Press |editor1-last = Molnar |editor1-first = J. L. |year = 2010 |isbn = 978-0-520-26256-0 |url = https://archive.org/details/atlasofglobalcon0000unse |url-access = registration }}

| mammal_species = 61

| conservation = Critical/Endangered

| habitat_loss = 1.0747

| habitat_loss_ref =

| protected = 8.55

| protected_ref =

| area = 137100

| biogeographic_realm = Nearctic

| biome = Temperate coniferous forests

| map = Fraser Plateau and Basin complex map.svg

| map_size = 248

}}

The Fraser Plateau and Basin Complex is an ecoregion defined by the World Wildlife Fund. It encompasses the middle reaches of the watershed of the Fraser River as it traverses the northern part of the Interior Plateau of British Columbia. The WWF ecoregion is similar in description to two of the ecoregions within Environment Canada's Montane Cordillera Ecozone: The Fraser Basin and the Fraser Plateau. Much of the Fraser Plateau is underlain by volcanic rocks, with steep escarpments along rivers and creeks and almost flat upper surfaces.

Physiographically, the Fraser Basin is a section of the larger Northern Plateaus province, which is part of the larger Intermontane Plateaus physiographic division.