Tectonic Unit: uPWCA Name: Windermere Description: graded-bedded assemblage of interbedded quartz-feldspar grit, sandstone, siltstone and shale, commonly maroon and green; diamictite in Rocky Mountains; limestone in upper part, local greenstone flows, breccia and tuff and metamorphic equivalents. "Middle Marble" marker (uPWl); marine Formation: Omineca Belt Cariboo Subterrane of Cassiar Terrane uP Yankee Belle, Cunningham, Isaac, Kaza Age Range: Upper Proterozoic Maximum Age: 1000.0 Ma Minimum Age: 570.0 Ma