Riverside County brush fire 30% contained

Firefighters in Riverside County were battling a wind-whipped, 300-acre brush fire Wednesday night that briefly threatened a mobile home park, authorities said.

The blaze, burning in the Glen Avon area near Granite Hill Drive and Quartz Canyon Road off the 60 Freeway, was 30% contained Wednesday evening and was burning toward homes in Fontana in San Bernardino County, according to authorities.

Earlier in the day, the flames forced authorities to evacuate part of the Santiago Estates Mobile Home Park, the Riverside County Fire Department said. Residents in the mobile home park were allowed to return to their homes.

More than 200 firefighters were attacking the flames. They were aided during the day by four air tankers and three water-dropping helicopters.

The cause of the blaze was under investigation.

-- Robert J. Lopez

Photo: A helicopter drops water on a burning hillside above Loyola Court in Fontana from a brush fire that began in Glen Avon. Credit: Gina Ferazzi / Los Angeles Times