Several fires are burning across western Colorado, with some at historic sizes and other causing evacuations of Western Slope towns.

A Colorado prison was evacuated as one of the largest wildfires in state history continued to grow, and officials warned residents of remote areas to be ready to leave Sunday as gusty winds and low humidity fed the flames.

The Lee Fire near Meeker, now the fifth largest fire in Colorado's history, is just one four major fires in western Colorado threatening homes and other structures as firefighters struggle to get containment.