Cheeseboro and Palo Comado Canyons cover over 4,000 acres in the northernmost section of the Santa Monica Mountains National Recreation Area, in the Simi Hills. The Chumash occupied these canyons for thousands of years, until ranchers came into the area in the 1800s. The natural landscape changed as a result to accommodate the needs of grazing cattle.
The National Park Service (NPS) acquired Cheeseboro Canyon in the early to mid 1980s and subsequently acquired Palo Comado Canyon (formerly known as the Jordan Ranch), in 1994.
Nearly every time we post an image from Cheeseboro Canyon to a social media site, someone points out, "it's not Cheeseboro, it's Chesebro."
Why is it called Cheeseboro when the road that gets you to the trailhead is called Chesebro?
According to a NPS Ranger I've spoken with, the original owner of the land in the late 1800s was Oscar Cheesebrough (yet a different spelling). The NPS adopted the U.S. Geological Survey spelling of Cheeseboro, while Caltrans adopted the name Chesebro.
Why the difference? That's not so clear. But what IS clear is that the actual canyon is called Cheeseboro Canyon and it is a beautiful place to hike and bike!