Conejo Grade

The Conejo Grade, also known as the Camarillo Grade, is a 7% grade incline with a summit elevation of 841.1 feet . It is a section of US 101 linking Thousand Oaks and cities of the Conejo Valley, with Camarillo and the cities on the Oxnard Plain. A Caltrans inspection station for trucks is stationed at the upper terminus of the grade.
Conejo Grade functions as a barrier which separates Ventura County into East County and West County. Historically, the mountain was known for its many jackrabbits and prickly pear cacti. The surrounding area was formed by volcanic eruptions millions of years ago, a rare geological formation in Southern California. The native Chumash people had a trading trail through the pass, and it later served as a trading route for farmers and their wagons down the Conejo Grade to the wharf in Port Hueneme. The grade experienced improvements by the newly established State Highway Department in 1912, when the road measured six miles long and had 49 curves. Traffic kept increasing and the road was straightened and relocated in 1935. The new road was a mile shorter and only had twelve curves.

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