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UPDATE: Authorities made “great progress” overnight on the Ysabel Fire, Cal Fire said.

SAN DIEGO — A fire in rural San Diego County grew to more than 170 acres and was threatening homes, before evacuation orders were lifted Saturday evening.

The fire broke out some time before noon in the Santa Ysabel area just west of Julian. A motor home caught fire and the flames spread to brush along state Route 79 near Mesa Grande Road, authorities said.

Officials said the fire was threatening homes on School House Canyon Road and parts of the neighborhood were being ordered to evacuate. Those who lived on School House were told they must leave, while residents of Epei Hill Road were warned that they may need to get out soon.

By 6:30 p.m., authorities had lifted all evacuation orders and warnings. The fire was holding steady around 173 acres, and was 17% contained, according to Cal Fire. All road closures were also lifted, and SR-79 was open for one-way traffic.