The High Cascades Complex was a group of 20 fires burning in four protected areas in Oregon, in the United States, specifically: Crater Lake National Park, Rogue River – Siskiyou National Forest, Umpqua National Forest, and Fremont–Winema National Forest. The first fire in the complex, the Blanket Creek Fire, was started by a lightning strike on July 29, 2017. In total, the fires have burned 72,309 acres (293 km2) and are 28% contained. The fires are directly impacting the communities of Prospect, Union Creek and Diamond Lake, park headquarters, old growth forests that house endangered species like the spotted owl and volcanic features.