The Highline Fire was a wildfire in Payette National Forest, 23 miles east of Warren, Idaho in the United States.

The fire closed access to many parts of Payette National Forest, including three airstrips.

The Highline Fire was started by a lightning strike on July 28 around 7:00 PM in the Payette National Forest, specifically the Krassel Ranger District, within the Frank Church River of No Return Wilderness.

Crews focused on letting the fire "play its natural ecological role...to the greatest extent possible while protecting the known values of risk."

They took actions to suppress the fire regarding protecting property or life, including guard stations, Idaho Fish and Game structures.