Sorry; I keep writing more. There is Nothing around this park, or Las Virgenes road. Noootthhiinnggg. You can drive from 101 to the beach and not see a single person or car.
Hyperbole alert.
While someone could easily hide a body in this area (in the many canyons), it is very, very rare to get all the way from 101 to the beach and not see a single car, except maybe 2-5am. At rush hour, this road is as slow as the 405 going in a particular direction. Even the more "remote" part between say Mulholland and and just above Pepperdine would see some cars except during the creepy times of the night (2-5ish).
Between 101 and Lost Hills Road, it is purely residential, as is typical in the area. Once you pass Lost Hills Road, you get to a wide flat lands area filled with grass, rolling hills and oak trees, Mulholland Hwy, and Malibu Creek State Park. Shortly past that, you enter a more forested area with Monte Nido and Piuma Rd which is a small forest community, a residential area, but more sparse, though the community is a bit off the main road. There is also the Temple, a school, Tapia Park, a wastewater treatment facility and a youth correctional facility. There are residences dotted throughout this landscape.
Once you go through the tunnel, shortly past Piuma Rd, you are along Malibu Canyon, for maybe 5-10 mins. There is nothing but a big canyon here. Finally you emerge near an engineering company, a neighborhood, Pepperdine University and Pacific Coast Highway.
It is one of those areas that is perfectly charming during the day, but feels very remote and creepy at night.
Drivers don't seem to pay attention to anything (maybe except the centerline of the road) in this area. Of all the people that traveled the road during rush hour, only one person saw Mitrice Richardson walking along it.