The second adult accused of starting the destructive Chateau fire admitted to the crime.
23-year-old David Renfrow pleaded guilty to a felony charge.
19-year old Kegan Owens recently pleaded guilty as well.
Both men, along with a teenage boy, were arrested over the summer after leaving an illegal campfire that spread in Teller County to over 1,400 acres.
The blaze ultimately destroyed several homes.
Renfrow and Owens will be sentenced in February.