The sheriff's office said the estimated size of the fire is at 472 acres as of Sunday morning. Containment of the fire was at 35% as of Sunday afternoon. No structures have been lost in the fire, the sheriff's office said. The Jefferson County Sheriff's Office said the initial response to the fire was by volunteer firefighters - something they need more of. Read more: https://www.9news.com/article/news/local/wildfire/quarry-fire-jefferson-county/73-dfa9c993-b4fb-4875-9565-0bec149444ff More local videos here: https://youtube.com/@9news Subscribe to NEXT: https://youtube.com/@Nexton9NEWS Stay connected: 9NEWS Website: https://www.9news.com/ Facebook: https://www.facebook.com/ilike9news Twitter: https://twitter.com/9NEWS Instagram: https://www.instagram.com/9newsdenver/ Download the 9NEWS App: https://www.9news.com/appredirect/ Sign up for the 9NEWSLETTER: https://www.9news.com/email 9NEWS (KUSA) is located in Denver, Colorado.