This protected area was recommended through the Okanagan-Shuswap LRMP (Land and Resource Management Plan) process and formally established as a Class A Park on April 18th, 2001, through Order-in Council under the Protected Areas of British Columbia Act.
The 10, 672 hectare park has provincially significant conservation values associated with representation of a wide mountain valley within the northern Columbia Mountains with steep mountain slopes enclosing old-growth interior we-belt forests and extensive river. The very lower end of the park is in the Shuswap Highlands Ecosection.
There is a large mountain valley, extending from low river floodplain at 600 meters elevation to steep narrow headwaters that culminate at Seymour Pass at an elevation of 1200 meters. The valley sides are steep with numerous avalanche paths and streams leading from high mountain ridges and basins. The lower floodplain ecosystem is highly complex with river riparian and oxbows forming extensive wetlands of shallow ponds, marshes, wet meadows, fens and shrub carr habitats.
The park has extensive spring habitats for grizzly bear and seasonal habitats for mountain caribou. Mule deer and moose also inhabit the park. A small number of swans can be seen in ponds along the river during the summer. The river has native stocks of rainbow trout, and possibly bull trout.