Sacramento Valley, Calif, outcrop section


Sourse beds of petroleum (1942) -- [ c.167 , c.168 , c.169 , c.170 , c.171 , c.172 , c.173 , c.174 , c.175 , c.176 , c.177 , c.178 , c.179 , c.180 , c.181 , c.182 , c.183 , c.184 , c.185 , c.186 , c.187 , c.188 , c.189 , c.190 , c.191 , c.192 , c.193 , c.411 ]