Tectonic Unit: PgTA
         Name: Amphitheatre
 
  Description: alluvial lithic sandstone, siltstone, and
               conglomerate; derived from granitic, metamorphic
               and volcanic rocks of the Coast Belt; lignite,
               younger landslide deposits; nonmarine
 
    Formation: Insular Belt
                  OT   Amphitheatre
 
    Age Range: Paleogene
  Maximum Age: 65.0 Ma
  Minimum Age: 23.3 Ma