Timberline Trail

Timberline Trail
Name	Timberline Trail
Location	Mount Hood National Forest, Clackamas County, Hood River County, Multnomah County
Length	~41 miles
Highest	Timberline Lodge vicinity
Lowest	Zigzag River crossings
Use	Hiking, Backpacking, Trail Running
Difficulty	Strenuous
Established	early 20th century

Timberline Trail The Timberline Trail is a roughly 41-mile circumferential hiking route around Mount Hood, traversing Mount Hood National Forest, alpine meadows, glacial moraines, and old-growth stands. The trail links historic sites such as Timberline Lodge and provides access to routes on Cooper Spur, Eliot Glacier, and the Pacific Crest Trail, serving hikers, mountaineers, and researchers from institutions like University of Oregon and Oregon State University.

Route and description

The trail circumnavigates Mount Hood with trailheads often accessed from Zigzag River, Lolo Pass, Rhododendron, and Government Camp, connecting with the Pacific Crest Trail and feeder trails leading to Timberline Lodge, Ski Bowl, and Cooper Spur. Terrain includes river crossings of the Eliot Creek and the Newton Creek corridor, high alpine passes near Eliot Glacier and White River Glacier, and long sections through forests dominated by Douglas fir, Western hemlock, and Pacific silver fir. Elevation gain varies; notable features include views of Columbia River Gorge, Mount Adams, Mount Jefferson, Broken Top, and Three Sisters. The route is marked by trail junctions with Salmon River Trail, Still Creek Trail, and access to climbing routes on South Side Climbing Route and Southwest Face.

History and development

Early indigenous presence around Clackamas people and Wasco people predated Euro-American trails; later exploration by Oregon Trail emigrants and surveyors led to recreational use. Conservation and trail-building efforts involved the United States Forest Service and volunteer organizations such as the Mazamas and the Pacific Crest Trail Association. Construction of Timberline Lodge during the New Deal era increased visitor access, and postwar developments by the Civilian Conservation Corps and Forest Service formalized alignments and bridges. Floods, lava flows, and glacial shifts prompted reroutes documented by Forest Service archives and regional historians from Oregon Historical Society.

Ecology and environment

The Timberline Trail traverses biomes ranging from montane forest to alpine tundra, supporting species monitored by Oregon Department of Fish and Wildlife and academic programs at Portland State University. Vegetation zones include Douglas fir forests, subalpine meadows with mountain hemlock and alpine larkspur, and moraine habitats influenced by the Eliot Glacier and Cooper Spur glacial dynamics. Fauna documented along the corridor include American black bear, Columbian black-tailed deer, cougar, elk, and numerous avian migrants such as mountain bluebird, Clark's nutcracker, and gray jay. The area is subject to ecological research on climate change effects on glacier retreat led by scientists affiliated with Oregon State University, the US Geological Survey, and regional conservation groups like Friends of the Columbia Gorge.

Trail use and recreation

Hikers, backpackers, trail runners, and mountaineers use the trail for day hikes, multi-day circuits, and as an approach to alpine climbs on Mount Hood via South Side Route and North Side Route. The Timberline Trail connects with recreational infrastructure at Timberline Lodge, winter ski areas such as Mt. Hood Meadows and Ski Bowl, and access points served by Oregon Route 26 and local shuttle services coordinated with Mount Hood National Forest district offices. Organized events by groups like the Pacific Crest Trail Association and regional trail clubs occasionally include maintenance excursions, races, and guided interpretive walks highlighting geology, glaciology, and ethnobotany.

Safety and hazards

Hazards include stream and river crossings—particularly on the Eliot Creek and White River—rapid weather changes from marine layer influence, creek logjams, and seasonal snowfields requiring route-finding and creek-fording skills emphasized by American Hiking Society guidance and Forest Service advisories. Avalanche risk persists in winter and spring in gullies such as Cooper Spur and near Eliot Glacier, while fall hazards include flash floods and rockfall near moraines. Wildlife encounters with black bear or cougar necessitate bear-resistant practices promoted by National Park Service-derived protocols and local ranger stations. Backcountry permits and Leave No Trace practices are enforced by the United States Forest Service and highlighted by organizations like Leave No Trace Center for Outdoor Ethics.

Access and logistics

Primary access via Oregon Route 26 and forest service roads leads to trailheads at Timberline Lodge, Zigzag trailhead, and Lolo Pass NHPA approaches; parking, shuttle, and permit information is managed by Mount Hood National Forest rangers. Seasonal considerations include snow melt influencing crossing safety and campground availability near Rhododendron and Government Camp. Resupply options exist in nearby communities such as Government Camp, Zigzag, and Hood River, with emergency services coordinated through Clackamas County Sheriff's Office or Hood River County Sheriff and search-and-rescue teams including Mountain Rescue Association affiliates.

Category:Hiking trails in Oregon Category:Mount Hood