The Black Forest Fire investigation is now in the hands of the district attorney's office.
The investigation, conducted by the El Paso County Sheriff's Office, was submitted to the DA on Tuesday.
The investigation includes thousands of pages of reports from various agencies, both federal and local. Within those reports are forensic analysis, interviews, photographs and timelines.
Within the eight 3-inch three-ring binders sitting in the DA's office are the cause and origin of the fire. But the sheriff's office will not release that information to the public yet because the investigation is still considered active.
Sheriff Terry Maketa told 11 News in June, however, that the fire was not caused by lightning, smoking, campfires or children playing in the area.
The district attorney will now review the file and determine if any crime was committed.
The fire destroyed 486 homes and killed two people. It is considered the most destructive wildfire in Colorado history.