Tectonic Unit: Sv
         Name: Bearpaw Ridge
 
  Description: amygdaloidal basalt of Silurian age;
               associated with Rocky Mountains Assemblage (CDR).
 
    Formation: Omineca Belt
                  Ancestral North America
               Foreland Belt
                  Ancestral North America
 
    Age Range: Silurian
  Maximum Age: 439.0 Ma
  Minimum Age: 408.5 Ma