Freeway Complex Fire 2008Though fires are a natural part of the ecosystem, there is nothing natural about the size and frequency of the fires destroying our wildlands year after year. This study is the culmination of research that documents a near 100-year fire history (1914-2011) in and around Chino Hills State Park. Fire perimeters and points of origin are used to articulate the problem months, weather conditions, and “hot spots” of fire ignition. A feature of this study also includes digital datasets for the public, agencies, and jurisdictions to interact with via Google Earth.


  • This study includes 71 fire perimeters and 70 points of origin totalling 103 separate fires that occurred between 1914 and 2011.
  • The three largest fires were: 1948 Green River Fire (41,285 acres), 1967 Paseo Grande Fire (39,872 acres), and 2008 Freeway Complex Fire (30,306 acres).
  • The three most prevalent fire months are: July (22 fires), September and October (11 fires each).
  • The two months with most acreage burned are: October (85,407+ acres) and November (97,526+ acres).
  • The three main known causes of fires include: arson (9 fires), power lines (7 fires), and automobiles (7 fires).

hfe-fire-studyTHE REPORT
Hills For Everyone (HFE) secured the shapefiles (digital data sets) of fire perimeters and points of origin from the California Department of Forestry and Fire Protection (CalFire), the Orange County Fire Authority (OCFA), and Chino Valley Independent Fire District (CVFD). Where appropriate, newspaper articles/maps, State Park Wildland Fire Reports, and personal accounts were used to digitally create a fire perimeter and/or point of origin. HFE used the ArcMap 10.1, a geographic information system (GIS) program, to assimilate the fire data. To make the files publishable to the public we exported the ArcMap datasets into Google Earth.

Download the Fire Study

There are 10 “layers” available for viewing in the Fire History of Chino Hills State Park (1914 – 2011) dataset.

  • Chino Hills State Park
  • Fire Causes and Points of Origin
  • Fire Perimeters
  • Fire Frequency
  • Rivers and Streams
  • Highways
  • Major Roads
  • County Boundaries
  • Study Area Boundary
  • Places

Freeway Complex Fire (2008)DOWNLOAD GOOGLE EARTH

Step 1

  • If you already have Google Earth installed, skip to Step 2.
  • If you do not have Google Earth, download a free copy of the program from Google.
  • Follow the installation instructions.
  • Start the program.

Step 2

  • Click on the KMZ file to open the Hills For Everyone dataset. It will automatically open in Google Earth, zoom into the Study Area and show the shape of Chino Hills State Park.

Download the Fire Data

We’ve created step-by-step instructions to help those of you who are new to Google Earth. Instructions include how to expand/collapse layers, turn on/off layers.

Additionally, we’ve also created instructions to help you use the Hills For Everyone dataset. These instructions cover how to view the different layers, get details on a fire, find a matching point of origin, and more.