The Joint Fire Science program funded a 3-year study to measure and model the forest floor consumption and sample flaming and smoldering emissions during wildfire and prescribed fires in the boreal forests of Alaska. During the summer of 2003, fuel consumption was measured at 5 sites on the Erickson Creek Fire (B-299) along the Dalton Highway, at one site on the Black Hills wildfires near Tok, and at one site on the Chena Lakes (F-Unit) prescribed fire near Fairbanks. Smoldering smoke emissions were measured at two sites on Erickson Creek (B299) wildfire and on one site on the Chena Lakes prescribed burn. In addition, several hundred forest floor 'moss and duff plugs' were collected and transported to the Missoula Fire Lab and will be burned and emissions sampled under various moisture and frozen layer conditions.