Boundary Fire (2017)

Boundary Fire
Firefighter watching the Boundary Fire, June 17, 2017
Date(s)	June 1, 2017 (2017-06-01) – July 3, 2017 (2017-07-03) (33 days)
Location	Coconino and Kaibab National Forests, Arizona, United States
Coordinates	35°25′55″N 111°49′52″W / 35.432°N 111.831°W / 35.432; -111.831
Statistics
Burned area	17,788 acres (71.99 km2; 27.794 sq mi)
Impacts
Damage	$9.4 million (equivalent to $11.5 million in 2023)
Ignition
Cause	Lightning
Map
Footprint of the Boundary Fire, from the National Interagency Fire Center
The location of the Boundary Fire, in northern Arizona

The Boundary Fire was a 2017 wildfire in Arizona that burned 17,788 acres (7,199 ha) of the Coconino and Kaibab National Forests. The fire was ignited on June 1 when lightning struck a spot on the northeast side of Kendrick Peak within the Coconino National Forest. The fire spread rapidly because of high temperatures, steep terrain, leftover dead trees from a wildfire in 2000, and high wind speeds.

The winds blew smoke over local communities and infrastructure, leading to the closure of U.S. Route 180 from June 8 to June 21. Smoke was also visible from the Grand Canyon. The Boundary Fire burned out on July 3, 2017, after 32 days of firefighting. The cost of managing the fire was $9.4 million (equivalent to $11.5 million in 2023). Damage to the area's foliage increased the risk of landslides into 2018.