The Boulder County Sheriff's Office said Suggs and Kuykendall face felony arson charges because this fire has put people's lives in danger.
A slurry bomber make a drop along a ridge near highway 119 in Nederland fighting the Cold Springs Fire July 10, 2016.
Officials said Monday that two more houses burned.
Approximately 1,991 people were asked to leave their homes because of the wildfire, according to the Boulder County Office of Emergency Management. The fire continues to cover about 600 acres.
This isn't the first run-in with law enforcement for the pair: Kuykendall was arrested four years ago and later convicted of raping a 15-year-old girl, according to Alabama criminal records, and the Cullman Times newspaper reported Suggs was arrested in 2012 for unlawful possession of a controlled substance and drug paraphernalia.
Two federal firefighters returning from a wildfire patrol in remote northern Nevada have been killed in a crash, while crews are battling blazes across the Western U.S.
"We have relative humidities in the low teens and temps in the high '80s; these are fire conditions that we often don't get at this elevation", Boulder County Fire Incident Commander Mike Smith said. They say a campfire probably started the fire. A day before they were coincidentally interviewed by a reporter from the Daily Camera about the fire with Suggs saying they had "never seen anything like it".
Colorado's largest current wildfire has blackened nearly 30 square miles in the northwest part of the state near the Wyoming line.
No aircraft were flying Sunday night during the latest drone sighting, but firefighters had to ground their planes for several hours Friday night during another drone flight, Saylors said.
That fire had burned 1,100 acres, and was 65 percent contained Monday, according to the Los Angeles County Fire Department.
A release from the National Forest Service said this restriction means people can not build fires or use stoves unless on permissible campsites; use explosives (including fireworks); smoke in open forest areas except in an enclosed vehicle or building, a developed recreation site, or while in an area at least 3 feet in diameter cleared of all flammable materials; use a vehicle off road; use tools with open flames or use an internal or external combustion engine without a spark-arresting device.