23 March 2026

More Carbon Canyon Road (SR 142) Work This Week

 The project continues, per the City of Chino Hills: 

The California Department of Transportation (Caltrans) will continue their road maintenance on State Route 142 (Carbon Canyon Road) from Tuesday, March 24, to Thursday, March 26, from 9:00 am to 2:30 pm. Crews will be conducting a survey and routine road repairs that will require one-way traffic control from Carriage Hills Lane to Feldspar Drive. Please watch for signage and remember to reduce your speed in and around work zones. For questions, please contact Caltrans District 8 at (213) 503-0161.

16 March 2026

Carbon Canyon Road (State Route 142) Work This Week

This was just sent out about an hour ago from the City of Chino Hills:

The California Department of Transportation (Caltrans) will be conducting road maintenance on State Route 142 (Carbon Canyon Road) from Tuesday, March 17, to Thursday, March 19, from 9:00 am to 2:30 pm. Crews will be conducting a survey and routine road repairs that will require one-way traffic control from Carriage Hills Lane to Azurite Drive. Please watch for signage and remember to reduce your speed in and around work zones. For questions, please contact Caltrans District 8 at (213) 503-0161.

The link is to a CalTrans "Commuter Alert" press release.

05 February 2026

Soquel Canyon History Presentation Next Monday for Chino Hills Historical Society

Next Monday, 9 February at 7:00 p.m. at the Chino Hills Community Center at 14250 Peyton Drive, the Chino Hills Historical Society holds the first of three meetings for 2026, with the topic for the presentation being some history of Soquel Canyon, which lies adjacent on the south of Carbon Canyon.

Redlands Citrograph, 26 May 1900.

The presentation will cover some 150 years including an early reference to an outlaw's hiding place, the 1880s oil boomtown of Petrolia, the canyon's use as part of long-standing Chino Ranch Ride, and decades as a location of weapons testing by Aerojet Corporation starting during the Cold War years. 

We hope to see you there!




29 January 2026

Olinda History Presentation Next Wednesday at Yorba Linda Public Library

A presentation on some of the history of the Olinda Ranch, Olinda Oil Field and the 1880s boomtown of Carlton (near today's Imperial Hwy. and Rose Dr.) will be given next Wednesday, 4 February @ 6 p.m. at the Yorba Linda Public Library Community Room.

Los Angeles Herald, 3 February 1888.

A PowerPoint slide show and display of historic artifacts are included.  Hope to see you there!

16 January 2026

Chino Hills Historical Society Talks for 2026

The Chino Hills Historical Society has issued a press release detailing its three meetings for 2026, including the first presentation on Monday, 9 February on some history of Soquel Canyon, which is adjacent on the south to Carbon Canyon and merges with it at Olinda Village in Brea.  The talk will go as far back as the 1850s and also discuss the oil boomtown of Petrolia, the Chino Ranch Ride, and some more modern history.

On Monday, 8 June, there'll some discussion of some of the history of what, in the 1970s and 1980s, became Chino Hills State Park, including its long use for livestock grazing.  Lastly, on Monday, 12 October, the focus will return to Boys Republic, the institution for troubled teens that has been in Chino Hills for nearly 120 years, with rarely seen photos and a focus on Clyde Doyle, who had a long relationship with the facility and served many terms in the House of Representatives.

We hope you can join us for these talks on local history!


15 January 2026

Sleepy Hollow 100th Anniversary Presentation Video Now Available

In October 2023, the Chino Hills community of Sleepy Hollow, nestled in the midst of Carbon Canyon adjacent to the border with Brea and Orange County, marked its centennial with a celebration at the Sleepy Hollow Community Center (which is now deemed surplus property and is likely to be sold, not having been used since this event).  

This included a PowerPoint slide presentation and summary of some of the neighborhood's history, reminiscences from long-time residents and descendants of Sleepy Hollow founders Cleve and Elizabeth Purington, a display of photos and artifacts and, despite a car crash along Carbon Canyon Road at the summit (this spot just hit again a few days ago with internet and phone service affected, though not electricity), a generator was quickly secured to power the event.

A Chino Hills Historical Society talk took place the following day at the city's community center and included the illustrated talk, the Purington and long-time resident recollections and displays.  Not only was there no power outage, but the evening was recorded and, along with the St. Joseph's Hill of Hope presentation shared yesterday, is now uploaded to the City of Chino Hills YouTube channel.  

Thanks to everyone involved in the recording and editing of the video, which can be viewed here.

14 January 2026

St. Joseph's Hill of Hope Presentation Video Now Available

Last October's presentation for the Chino Hills Historical Society on some of the remarkable and little-known history of the St. Joseph's Hill of Hope community, which has been on more than 400 acres in the hills adjoining Carbon Canyon on the north for more than a half-century, was, unfortunately, unaccompanied by illustrations because of technical issues at the meeting room in the community center.

Thanks to the City of Chino Hills, however, a recording was made in late November at City Hall and has been edited and just recently uploaded on to the City's YouTube channel.  Appreciation is extended to Valerie McClung, who made the arrangements, and Edward Chan, who handled the recording and editing, for their work on the video, as well as to Roberta and Michael Haag of St. Joseph's Hill of Hope for taking part in both the live and recorded presentations.

Check out the video here.