Cal Fire SLO Firefighters were busy yesterday. Officials say a vegetation fire threatened a structure yesterday afternoon along Rancho La Loma Linda Drive and Highway 41 East. The flames charred roughly 5 acres before firefighters got them under control. no structures were damaged. the cause is under investigation. Fire crews were also on scene of a small grass fire in Price Canyon. Firefighters made quick that fire. Officials say it was caused by a vehicle in tall grass.