Mount Hood National Forest Issues Evacuation Notices and Extensive Trail Closures Amidst Encroaching Grasshopper Fire

The majestic, snow-capped peaks of Mount Hood, a beacon of outdoor recreation and natural beauty just a stone’s throw from Portland, Oregon, are currently under a significant threat from the rapidly expanding Grasshopper Fire. In response to the escalating danger, the U.S. Forest Service has implemented sweeping closures within the Mount Hood National Forest (MHNF), impacting nearly half of the forest’s accessible trails and numerous forest roads. As of August 7, 2026, these closures, effective from August 4 through December 31, 2026, encompass a substantial portion of the Barlow Ranger District, a region renowned for its diverse hiking opportunities and critical wildlife habitats.

The Grasshopper Fire, which ignited on July 23, has exhibited a voracious appetite for the surrounding dry vegetation, swelling to an alarming 48,280 acres. Its containment level, a critical metric for assessing wildfire control efforts, stands precariously at just 23%. This low containment rate, coupled with its aggressive spread, has brought the fire alarmingly close to the Mount Hood Highway, a vital artery for both visitors and local communities. The impact on recreational access is profound, with 54 trails and 24 forest roads now completely inaccessible to the public.

Heather Ibsen, the Public Affairs Officer for the MHNF, emphasized the scale of these closures. "We are looking at a good portion of the Barlow Ranger District being affected," she stated in an interview with Backpacker. This significant restriction means that many of the trails that typically draw hikers and backpackers from across the region and beyond are now off-limits. Among the most notable closures is the iconic 41-mile Timberline Trail, a beloved loop that circumnavigates the base of Mount Hood. This closure has a cascading effect, impacting not only those intending to hike the entire loop but also segments of the world-renowned Pacific Crest Trail (PCT) that share portions of its route.

While the Timberline Trail itself is largely closed, the U.S. Forest Service has clarified that the main PCT corridor, particularly the section traversing the eastern slopes of Mount Hood, currently remains open. However, this remains a dynamic situation, subject to the fire’s unpredictable behavior and changing weather patterns. The Meadows area of Mount Hood, a popular destination for skiers and summer hikers alike, was placed under a Level 3 "go now" evacuation notice on August 4, underscoring the immediate danger posed to residents and visitors in the vicinity. The gravity of the situation was further highlighted by Outside magazine, which reported that the fire "jeopardizes the heart of Pacific Northwest outdoor culture," a stark reminder of the deep connection between the region and its natural landscapes.

The extensive list of closed trails includes beloved routes such as the Zig Zag Mountain Trail, Lookout Mountain, Elk Meadows, Umbrella Falls, and Surveyor’s Ridge, among many others. These closures are concentrated on the western side of Mount Hood, the area closest to the fire’s current progression. The USDA’s Forest Service webpage provides a comprehensive and up-to-date list of all affected trails and roads, along with detailed maps illustrating the fire closure boundaries, offering a crucial resource for those planning outdoor activities in the region.

According to forest service officials, the current closures are slated to remain in effect through the end of 2026, though this timeline is contingent on the fire’s suppression and the assessment of potential damage to natural resources and infrastructure. Ibsen explained the phased approach to reopening. "The forest will open up areas as quickly as possible, so we may reduce the closure size first before it’s entirely rescinded," she noted. "Developed areas such as campgrounds, picnic areas, or highly-used roads may remain closed until hazards can be mitigated." This suggests that even after the immediate threat of the fire subsides, certain popular facilities might remain inaccessible for a period to ensure public safety and allow for necessary repairs or assessments.

The crucial stretch of the Pacific Crest Trail that winds through the eastern side of Mount Hood, while currently open, is under constant observation. The shifting winds play a pivotal role in determining the fire’s trajectory and its potential impact on this vital long-distance hiking route. On Thursday, August 6, Ibsen reported a positive development: "The winds are shifting around back to the west today. So that should help reduce the risks to the PCT." As of that day, the closest point of the fire’s perimeter was still approximately four miles from the PCT, offering a small but significant buffer.

Hikers undertaking segments of the PCT are strongly advised to remain vigilant, monitor local conditions closely, and consult resources provided by the Pacific Crest Trail Association (PCTA). The PCTA maintains a dedicated webpage for tracking PCT closures and alerts, ensuring that thru-hikers and day hikers alike have access to the most current safety information.

Ibsen also provided a crucial perspective on the overall impact: "The current trail closure represents less than half of all of the hiking trails in MHNF." This offers a glimmer of hope, indicating that while significant portions are closed, there are still numerous other trails available for exploration on the eastern side of Mount Hood. These include popular destinations like Mirror Lake, Ramona Falls, Tamanawas Falls, Trillium Lake Loop, and McNeil Point. However, even in these open areas, hikers are urged to exercise caution and be aware of potential wildfire smoke. The health implications of inhaling smoke from wildfires are significant, and visitors should consult resources on how to hike safely in smoky conditions to protect their respiratory health.

The Grasshopper Fire is not an isolated incident; it is part of a broader trend of increasing wildfire activity in the western United States, exacerbated by climate change, prolonged drought conditions, and the accumulation of combustible vegetation. The Pacific Northwest, historically known for its lush forests, is experiencing more frequent and intense fire seasons. This phenomenon poses a significant challenge to land management agencies like the U.S. Forest Service, requiring them to balance public access with the imperative of protecting natural resources and human safety.

The economic implications of such extensive closures are also considerable. Mount Hood is a major tourist destination, drawing visitors who contribute to the local economy through lodging, dining, and outdoor gear purchases. The prolonged closure of trails and roads will undoubtedly have a negative impact on businesses that rely on the influx of outdoor enthusiasts. Furthermore, the ecological consequences of large wildfires are far-reaching, affecting biodiversity, water quality, and soil stability for years to come.

The response to the Grasshopper Fire involves a coordinated effort by numerous agencies, including the U.S. Forest Service, the Bureau of Land Management, and various state and local fire departments. The deployment of firefighting resources, including hand crews, engines, aircraft, and specialized equipment, is essential in combating the blaze. However, the sheer scale of the fire and the challenging terrain often make full containment a lengthy and arduous process.

As the fire continues to burn, the focus remains on public safety and the protection of critical infrastructure and natural landmarks. The decision to close trails and issue evacuation notices reflects the seriousness of the threat. While the immediate future for many of Mount Hood’s beloved trails is uncertain, the ongoing efforts to contain the Grasshopper Fire offer hope for the eventual restoration of access and the preservation of this invaluable natural resource for generations to come. The resilience of both the landscape and the communities that cherish it will be tested in the coming months as they navigate the aftermath of this significant wildfire event. The situation serves as a stark reminder of the delicate balance between human enjoyment of wild spaces and the powerful, often destructive, forces of nature.