Much at stake in Mt. Wilson fight

By Corina Knoll and Hector Becerra

Aug. 31, 2009 12 AM PT

If flames were to reach the top of Mt. Wilson, home to the region’s TV and FM radio transmitters, what would happen?

Severe damage could disrupt cellphone service, as well as television and radio programming for those who receive signals over the air. It also could interrupt some emergency law enforcement communications.

But Los Angeles police and fire departments do not use the tower, and neither does the Los Angeles County Sheriff’s Department.

Mt. Wilson is home to more than two dozen towers that occupy its peak just north of Sierra Madre. It supports antennas that beam signals for television and FM radio stations throughout the region. The fire also threatens the historic solar observatory atop the mountain, which houses multimillion-dollar astronomy projects for UCLA, USC and UC Berkeley. Georgia State University also operates a $20-million facility and a powerful telescope array at the observatory.

“There’s a lot of dollar value in those towers and of course, what they mean to broadcasters in Southern California,” said Harold McAlister, director of the nonprofit Mt. Wilson Institute, which runs the observatory. “It’s one of the major communication centers for this part of the country.”

KCBS-TV Channel 2 and KABC-TV Channel 7 said that viewers with cable or satellite television will still receive a signal, but those who get theirs over the airwaves might lose their connection.

“A lot of people think of an observatory as one dome, but Mt. Wilson Observatory is actually a 40-acre tract of land with 50 to 60 buildings on it,” McAlister said. “None of that stuff is portable, and to move telescopes out of there takes many weeks. We’re strictly at the mercy of nature and the great competence of the firefighters.”

The observatory was founded by George Ellery Hale in 1904, and its first telescopes were transported up the nine-mile Mt. Wilson toll road on the backs of burros in pieces that weighed hundreds of pounds each. Now, the observatory lets visitors view space through its 60-inch telescope, which has been in place since 1908.

The observatory was also a home to Edwin Hubble, who used the famed 100-inch Hooker telescope in the 1920s and recognized that the faint smudges in the sky called nebuli were in fact distant galaxies. Observing that these galaxies were moving away from one another, he determined that the universe was expanding. Hubble’s theory, combined with Einstein’s theory of relativity, concluded that the universe was created at a specific point in time, later called the Big Bang.

Flames also had damaged emergency communications equipment on Mt. Lukens, north of La Crescenta.

“It is changing minute by minute,” McAlister said of the situation late Sunday. “In terms of what could happen, anybody in the L.A. Basin that watches television broadcast rather than cable or satellite will lose their television connection. It really is a major communications link for Southern California up there.

“It is where the modern universe was discovered,” he said. “It is a precious scientific site that is invaluable.”

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Times staff writers Rong-Gong Lin II and Anna Gorman contributed to this report.

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Corina Knoll

Corina Knoll is a former reporter for the Metro section of the Los Angeles Times. She was on the team that investigated corruption in Bell — which led to the paper’s 2011 Pulitzer Prize for public service — and went on to cover the trials of the city’s former officials. She later contributed to the paper’s coverage of the San Bernardino terror attack that won the 2016 Pulitzer Prize for breaking news. As a regional reporter, she wrote features about the San Gabriel Valley and the Westside. During her courts beat, she covered high-profile criminal cases and civil disputes, including the Jackson family vs AEG and Bryan Stow vs LA Dodgers. She and two colleagues investigated sheriff’s deputies whose histories of misconduct landed them on the department’s top-secret Brady list. She left The Times in January 2019. Raised in the Midwest, she is a graduate of Macalester College.

Hector Becerra

Hector Becerra is managing editor of the Los Angeles Times. A native Angeleno who grew up in Boyle Heights, Becerra’s first foray into journalism was as the editor of the University Times at Cal State Los Angeles. He started his career at the Los Angeles Times in 1999 and was a general assignment reporter until 2014, covering everything from wildfires to crime to Latino cultural trends. He has been among the first to a murder scene as part of a ride-along in South L.A. and has tried his hand as a field worker, picking strawberries in Santa Maria. Becerra was part of the team of reporters that won the Pulitzer Prize’s Public Service award for its coverage of the city of Bell corruption scandal. He was city editor for the California section until 2022, when he was promoted to deputy managing editor. He was named managing editor in 2024.

Much at stake in Mt. Wilson fight

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