A spectacular display of colour illustrates this park's rich geology.
Successive lava flows form layers in varying tones of red, brown, yellow and purple.
These have been revealed in the canyon walls through erosion over the past 10 million years. Chasm Provincial Park protects the unique river canyon of the Chasm Creek Valley and part of the Bonaparte River Valley. In 1995, the park was recommended for expansion through the Cariboo Chilcotin Land-Use Plan. It was enlarged from 141 hectares to 3067 hectares to protect more of the area's colourful geological formations and ponderosa pine forests. The unique features of Chasm Provincial Park offer hiking opportunities and spectacular backdrops for the avid photographer.