Great Valley Sequence rocks are upturned along the east edge of the Coast Range, increasing in age to the west: QPc, Quaternary-Pliocene continental sediment; E, Eocene marine rocks; Ep, Paleocene marine rocks; Ku, Cretaceous marine rocks. Qoa, aprons of old alluvium. The main valley floor is young alluvial sediment. The area east of Irwin is Ice Age sand from the Merced River.

Download Original: 640 × 550 Side Trips from Interstate 5: Great Valley Rivers and Grasslands

grassrivermaps 11 April,2013Andrew Alden