The 2013 Colorado firefighter calendar photo shoot went down last week, and photographer Nathan Federico brings back these photos from the June 29 shoot, held at one of the metro area's training facilities. "Everybody has to remember, (firefighters) have off-days too, and they are using their off-days -- one of them came directly off the line -- because they are also helping burn victims of Children's Hospital Burn Center," says Barbara Brooks, a rep for the calendar.
Scroll down for oily, firefighter man-action.
See also: - Slideshow: 2013 Colorado firefighter photo shoot
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