Sunday morning, flames threatened another 170 houses near the communities of Yankee Jim and Iowa Hill. The so-called Robbers Fire has evacuated about 300 people living near Placer County in the community of Colfax.
The fire started on Wednesday and has since scorched three square miles. Currently, it's about 20 percent contained.
Officials are worried the fire could jump the American River and endanger Foresthill, a community of about 1,500 people.
Nine firefighters have been hurt fighting this fire.
The Associated Press contributed to this report.