The Calgary Fire burning east of Wofford Heights is holding steady at just over 50 acres Monday morning, with Cal Fire saying the containment is up to 90 percent. The fire that erupted Saturday destroyed nine homes and threatened more than 300, according to fire officials. The cause of the fire is under investigation. Weekend evacuations have been lifted, and Highway 155 has reopened. County officials warns of unhealthy air quality in the Kern River Valley and advise people to limit outdoor time. Residents are also asked to keep clear of firefighting equipment and activity.