Tectonic Unit: PCHP
         Name: Hyland
 
  Description: upper unit: blue-grey, apple-green and maroon
               slate with minor siltstone and sandstone; lower
               unit: interbedded graded sequence of sandstone,
               locally conglomeritic and shale with limestone in
               upper part; marine
 
    Formation: Foreland Belt
                  Porcupine Terrane
                       unnamed varicoloured clastics spanning Alaska-Yukon
                       boundary
 
    Age Range: Upper Proterozoic - Lower Cambrian
  Maximum Age: 1000.0 Ma
  Minimum Age:  536.0 Ma