A late night's rain helped firefighters secure the perimeter of the fire two miles west of Swanson Lake, the Division of Forestry said Wednesday.
Fire information official Bud Sexton said that the fire continues to produce smoke, and has crept forward. Firefighters were attempting to connect hoses to local water sources on Wednesday, Sexton said.
The cause of the fire remains unknown.
"There was some lightning in the area," he said. "But a final determination has not been made."
The fire grew to about 60 acres earlier this week but hasn't grown larger, according to official estimates.
Officials initially misstated that the fire was on US Fish and Game land, when it was actually Kenai Refuge Land administered by said department. Two choppers and eight parachuting firemen are fighting the fire, with the help of two village crews.
"There are no structures in the area," he said. "It's all general wilderness."
All open burn permits in the area have been suspended. Please call 260-4211 for more fire information.
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