Rancho El Conejo was a 48,572-acre (196.56 km²) Spanish land grant in California given in 1803 to Jose Polanco and Ygnacio Rodriguez that encompassed the area now known as the Conejo Valley in southeastern Ventura and northwestern Los Angeles Counties. El Conejo means "The Rabbit" in Spanish, and refers to the many rabbits common to the region (the Desert Cottontail and Brush Rabbit species). The east-west grant boundaries approximately went from the border of Westlake Village near Lindero Canyon Road in the east to the Conejo Grade (the top of the hill along the 101 Freeway looking down into Camarillo) in the west. The north-south borders extended from the top of the Simi Hills at the end of Moorpark Road in the north to Hidden Valley in the Santa Monica Mountains in the south.