Editing Chino Hills, California (section)

==Geography==

{{climate chart
|Chino Hills, California
|41|68|4.02
|44|69|4.05
|45|69|3.45
|47|74|0.73
|51|76|0.25
|55|82|0.05
|59|89|0.00
|59|89|0.13
|58|87|0.29
|53|80|0.66
|45|73|1.29
|41|68|2.04
|source=Weather.com / NWS
|float=right
|clear=left
|units=imperial
}}Chino Hills is a part of the [[Chino Valley, California|Chino Valley]]. According to the [[United States Census Bureau]], the city has a total area of {{convert|44.8|sqmi|km2}}, much of which is undeveloped rolling hills, including the [[Chino Hills State Park]]. {{convert|44.7|sqmi|km2}} of it is land and {{convert|0.1|sqmi|km2}} of it (0.15%) is water.

===Development===
Due to its topography of rolling hills, Chino Hills was primarily rural prior to the mid-1970s; most land was utilized for [[equestrianism|equestrian]] purposes and for [[dairies]], except for the multi-use purposes of the State of California, promoting jobs for the community through [[day labor]] from the Chino Institute for Men on Central Avenue. Rapid and extensive housing developments followed throughout the 1980s and early 1990s, only slowing down in recent years. Most neighborhoods are arranged in a village-type format with strategically placed shopping centers and parks designed to be within walking distance of nearby homes. The Vellano Country Club, a private golf course and housing development, was designed by golf champion [[Greg Norman]], his first project in the [[Greater Los Angeles area]].<ref>
{{cite news |last=Rappaport |first=Michael |title=Buyers Lining Up To Live in Vellano |url=http://www.shark.com/gngcd/gngcd/041505.php |url-status=dead |archive-url=https://web.archive.org/web/20061017215351/http://www.shark.com/gngcd/gngcd/041505.php |archive-date=October 17, 2006 |access-date=January 18, 2007 |newspaper=Inland Valley Daily Bulletin}}</ref> Chino Hills also includes the developed golf course development [[neighborhood]] of [[Los Serranos, Chino Hills, California|Los Serranos]]. Other large master-planned subdivisions include ''Woodview/Village Crossing'', ''Gordon Ranch'', ''LaBand Village'', ''Butterfield Ranch'',<ref>{{cite web |date=March 7, 2014 |title=Chino Hills Allows High Density Units At Butterfield |url=http://sbsentinel.com/2014/03/chino-hills-allows-high-density-units-at-butterfield |archive-url=https://web.archive.org/web/20220517175818/https://sbcsentinel.com/2014/03/chino-hills-allows-high-density-units-at-butterfield/ |archive-date=May 17, 2022 |access-date=August 1, 2023}}</ref> ''Rolling Ridge'', ''Fairfield Ranch'', and ''Payne Ranch''.<ref>{{Cite book |last1=Greene |first1=A. C. |url=https://books.google.com/books?id=jAdYj0MqNNIC&q=history+of+Butterfield+ranch&pg=PA210 |title=900 Miles on the Butterfield Trail |date=July 2006 |publisher=University of North Texas Press |isbn=9781574412130}}</ref>

===Layout===
The city of Chino Hills is bounded by the [[Los Angeles County]] cities of [[Pomona, California|Pomona]] and [[Diamond Bar]] to the north and to the northwest, the Los Angeles County unincorporated area of [[South Diamond Bar, California|South Diamond Bar]] to the west, the [[San Bernardino County]] city of [[Chino, California|Chino]] to the east, unincorporated [[Riverside County, California|Riverside County]] near [[Corona, California|Corona]] to the southeast, and the [[Orange County, California|Orange County]] cities of [[Brea, California|Brea]] and [[Yorba Linda, California|Yorba Linda]] to the west and southwest, respectively, as well as an unincorporated area of Orange County between Brea and Yorba Linda and a small unincorporated area between Yorba Linda and [[Anaheim, California|Anaheim]], to the southwest and south, respectively.

The eastern border of Chino Hills roughly follows the [[Chino Valley Freeway]] (SR 71), which offers access to the [[Pomona Freeway]] (SR 60) to the north and the [[California State Route 91#Riverside Freeway|Riverside Freeway]] (SR 91) to the south. Undeveloped hills form the western border, which also serves as the San Bernardino – Orange County line. Because this area is mostly undeveloped, there is only one road directly connecting Chino Hills and Orange County, [[California State Route 142|Carbon Canyon Road]] (SR 142), which is long, winding, and prone to [[landslides]].<ref>{{cite web
 |title        = 1998 Landslide Inventory
 |publisher    = Department of Conservation
 |url          = http://anaheim-landslide.com/landslide98.htm
 |access-date   = January 18, 2007
 |archive-url  = https://web.archive.org/web/20110709014540/http://anaheim-landslide.com/landslide98.htm
 |archive-date = July 9, 2011
 |url-status     = dead
}}</ref><ref>{{cite web 
 |title=Southern California Landslide Localities 
 |publisher=California Geological Survey 
 |date=October 30, 2006 
 |url=http://www.consrv.ca.gov/CGS/thp/ls_response/ls_la.htm 
 |access-date=January 18, 2007 
 |archive-url=https://web.archive.org/web/20060924070350/http://www.consrv.ca.gov/CGS/thp/ls_response/ls_la.htm 
 |archive-date=September 24, 2006 
 |url-status=dead 
 }}</ref>

{{Geographic Location
|title = '''Destinations from Chino Hills'''
|Northwest = [[Diamond Bar, California|Diamond Bar]]
|North = [[Pomona, California|Pomona]]
|Northeast = [[Chino, California|Chino]]
|West = [[Diamond Bar, California|Diamond Bar]]<br />[[Brea, California|Brea]]
|Centre = Chino Hills
|East = [[Chino, California|Chino]]<br />[[Eastvale, California|Eastvale]]
|Southwest = [[Brea, California|Brea]]<br />[[Yorba Linda, California|Yorba Linda]]
|South = [[Yorba Linda, California|Yorba Linda]]<br /> [[Anaheim, California|Anaheim]]
|Southeast = [[Corona, California|Corona]]
}}

=== Faults ===
Chino Hills is situated near several significant fault lines due to its position within the complex tectonic setting of the [[San Andreas Fault]] system. The most prominent faults in the area include:

# [[Chino Fault]]: This fault runs along the eastern edge of the Chino Hills, extending from Corona to the Los Serranos area. 
# [[Whittier Fault]]: Located to the west of Chino Hills, 
# [[Yorba Linda Fault]] (Yorba Linda Trend): This lesser-known fault identified in the 1990s transects the Whittier Fault and extends into the southeastern portion of Chino Hills.
# Additionally, there are other active faults in the broader region, including the [[Elsinore Fault Zone|Elsinore Fault]] [[Elsinore Fault Zone|Zone]], which runs from the Peninsular Ranges northwest to the Chino Hills range.

These faults contribute to the seismic activity in the region, such as the 2008 Chino Hills earthquake, with a magnitude of 5.4, attributed to pressure at the intersection of the Chino and Whittier faults. The earthquake was felt as far south as San Diego and as far north as Las Vegas.
{{Main|2008 Chino Hills earthquake}}

=== Wildfires ===
Chino Hills, California, has experienced several significant wildfires, including the [[Freeway Complex Fire]] and [[Canyon Fire 2|Canyon Fire]], primarily due to dry conditions, strong winds, and dense vegetation. These events have led to increased awareness and preparedness efforts in Chino Hills and surrounding communities. Residents are encouraged to create defensible spaces around their properties, maintain fire-resistant landscaping, and stay informed about local fire conditions, especially during peak wildfire seasons.