The following questions are based on Map T-15, the “Point Reyes, California” quadrangle (scale 1:62,500; contour interval 80 feet) showing Point Reyes and Drakes Bay in Point Reyes National Seashore 38 01 38 N, 22 57 51 W. Explain the formation of Drakes Estero. Does it appear to be the feature of a shoreline of emergence or submergence? Group of answer choices Elevated river valley Submerged river valley