The Chilcotin Ark is a complex of different unique, connected ecosystems. Water as the source of life is very important to flora and fauna and influences each ecosystem differently. The Chilcotin Ark has the largest water storage of western North America, which is why it is very important to conserve and manage the area..

Due to it’s special location between the rainy Coastal Mountains and the dry interior plateau of British Columbia, the Chilcotin Ark has 12 out of 16 biogeoclimatic zones of British Columbia, each of them with unique ecosystems and a variety of wildlife.