McKenzie Pass–Santiam Pass Scenic Byway

McKenzie Pass–Santiam Pass Scenic Byway
Name	McKenzie Pass–Santiam Pass Scenic Byway
Location	Oregon, United States
Length mi	82
Established	1990s
Termini	Eugene, Oregon — Bend, Oregon
Counties	Lane County, Oregon; Linn County, Oregon; Deschutes County, Oregon
Route	U.S. Route 20 in Oregon; Oregon Route 126; Oregon Route 242

McKenzie Pass–Santiam Pass Scenic Byway The McKenzie Pass–Santiam Pass Scenic Byway is a designated All-American Road and National Scenic Byway traversing the Cascade Range of Oregon. The corridor links the Willamette Valley to central Oregon, crossing volcanic terrain, alpine lakes, and old-growth forests between Eugene, Oregon and Bend, Oregon. It is notable for its high-elevation passes, historic highways, and proximity to volcanic landmarks within Deschutes National Forest and Willamette National Forest.

Route description

The byway follows a sequence of federal and state routes including U.S. Route 20 in Oregon, Oregon Route 126, and the historic Oregon Route 242 (the McKenzie Highway), connecting communities such as Lava, Oregon, Sisters, Oregon, Chemult, Oregon and McKenzie Bridge, Oregon. From the western terminus near Springfield, Oregon the route ascends through the western Cascade Range into the McKenzie River drainage, skirting landmarks like Clear Lake (Oregon), Sparks Lake, and Tamolitch Pool. Crossing McKenzie Pass via Oregon Route 242, the byway passes the Belknap Crater and Three Sisters (Oregon), then descends toward Santiam Pass where it intersects U.S. Route 20 in Oregon and links to Sisters, Oregon and Bend, Oregon. The corridor alternates between single-lane paved sections, hairpin turns, and higher speed segments near Santiam Junction, Oregon, providing multiple pullouts for views of Mount Jefferson, Mount Washington (Oregon), and Mount Hood on clear days.

History

The corridor incorporates alignments used by Native American groups such as the Molalla people and Kalapuya for trade and seasonal travel between the Willamette Valley and high country. Euro-American exploration and wagon roads in the 19th century were influenced by surveys from figures associated with the Oregon Trail era and later by the United States Forest Service road-building programs. The McKenzie Highway (OR 242) was completed in the early 20th century amid efforts by civic boosters from Eugene, Oregon and Bend, Oregon to promote tourism and timber access. During the New Deal, works by the Civilian Conservation Corps improved trails, overlooks, and campgrounds along the route. In the late 20th century, advocacy by conservation organizations and state agencies led to federal recognition of the corridor as a National Scenic Byway, aligning with initiatives by the Federal Highway Administration to preserve culturally and geologically significant roadways.

Natural features and geology

Geologically the byway traverses the High Cascades and the Cascade Volcanic Arc, featuring volcanic features such as the McKenzie Pass lava flows, the cinder cones of Belknap Crater, and glaciated peaks including the Three Sisters (Oregon). Holocene and Pleistocene eruptions from vents in the Newberry National Volcanic Monument and nearby fields produced extensive lava beds and pahoehoe flows visible at Clear Lake (Oregon) and along the McKenzie River. The corridor also showcases montane ecosystems: western hemlock and Douglas-fir stands on the west slope transition to mountain hemlock and subalpine fir near the passes. Unique features such as the lava tube systems, tephra layers from Mount Mazama eruptions, and alpine wetlands support endemic and specialized taxa adapted to volcanic substrates.

Recreation and tourism

The byway is a hub for outdoor recreation promoted by agencies including the United States Forest Service, Oregon Department of Transportation and regional chambers such as the Sisters-Camp Sherman Chamber of Commerce. Popular activities include hiking on trails to Tamolitch Pool, backcountry skiing near Sahalie Falls, bicycle touring on historic stretches of OR 242, fishing in the McKenzie River and nearby alpine lakes, and scenic photography of Three Sisters Wilderness vistas. Visitor facilities include campgrounds (managed by the Willamette National Forest and Deschutes National Forest), interpretive centers operated by local historical societies, and commercial outfitters based in Sisters, Oregon and Bend, Oregon.

Transportation and maintenance

Maintenance of the byway is a patchwork coordinated among the Oregon Department of Transportation, United States Forest Service, and county governments of Lane County, Oregon, Linn County, Oregon, and Deschutes County, Oregon. Seasonal snow closures at McKenzie Pass (OR 242) are routine, with plowing limited by avalanche risk and resource protection; winter travel is commonly routed via U.S. Route 20 in Oregon and Santiam Pass. Infrastructure projects have included pavement rehabilitation funded by federal surface transportation programs, bridge work over tributaries of the Willamette River, and interpretive signage installed through grants from the National Scenic Byways Program. Public transportation is limited; park-and-ride services and shuttle pilots have been proposed by regional transit districts to reduce congestion during peak tourism months.

Environmental protection and wildlife

The corridor traverses protected lands administered by the Willamette National Forest and Deschutes National Forest, with portions adjacent to designated wilderness areas including the Three Sisters Wilderness and the Mt. Washington Wilderness. Conservation efforts by organizations such as the Oregon Wild, The Nature Conservancy, and local watershed councils focus on riparian restoration in the McKenzie River basin, invasive species control on volcanic soils, and habitat connectivity for species like the Northern Spotted Owl, American marten, Columbian white-tailed deer populations, and migratory salmonids including chinook salmon. Fire management strategies integrate prescribed burning and mechanical thinning to reduce the risk of stand-replacing wildfires consistent with plans developed by the Bureau of Land Management and forest supervisors.

Cultural and historic sites

Along the byway are numerous cultural and historic resources: traditional Native American sites associated with the Warm Springs Indian Reservation and Confederated Tribes of the Grand Ronde Community of Oregon, historic ranger stations and CCC-era structures, and interpretive exhibits relating to the Oregon Trail era, early 20th-century highway engineering, and regional logging history. Nearby museums and archives in Eugene, Oregon, Sisters, Oregon, and Bend, Oregon preserve artifact collections and photographic records documenting the corridor's evolution from indigenous travel route to modern scenic byway. Category:Scenic highways in Oregon