It is covered with scrub forest and inhabited by ancient horses, rhinoceros and camels.
5 to 1.8 Million Years Ago Los Angeles-Orange County area hills are forced upwards in height to become mountain ranges. 1.8 Million to 10,000 Years Ago Large mountain ranges now are present and the Los Angeles-Orange County Basin, formed from accumulating sediment deposits, slowly rises from the sea.
Land begins to emerge, with the local shoreline running along the San Gabriel, Santa Monica and Santa Ana Mountains and the Covina Hills.
24 to 5 Million Years Ago At the beginning of this era, what will become the Los Angeles-Orange County Basin lies beneath a deep, subtropical sea and, before the San Andreas Fault begins its push, is located about 100-150 miles southeast of where it is today.
These ancient hills, ripe with volcanic activity, rise to no more than an elevation of 1,000 feet.
Dry land around the submerged Los Angeles-Orange County Basin is subtropical, receiving about 30-40 inches of rainfall a year.
Voor de cookies die derde partijen plaatsen en de mogelijke gegevens die zij daarbij verzamelen, verwijzen wij naar de verklaringen die deze partijen op hun eigen websites daarover geven, zie de links hieronder.