Spencer Butte is a prominent landmark in Lane County, Oregon, United States, on the southern edge of Eugene.

Spencer Butte is a cornerstone of Eugene’s outdoor culture, but even seasoned hikers might be surprised by these lesser-known details. Dive into the geology, trails, and quirks that make this landmark unique.

1. Precise Elevation & Coordinates

  • Summit elevation: 2,055 feet (626 meters) above sea level.
  • Base elevation: Approximately 1,300 feet (396 meters).
  • World coordinates: 43.98361°N, 123.09667°W.

2. Part of the Ridgeline Trail System

Spencer Butte is a key segment of Eugene’s 12-mile Ridgeline Trail System, which connects multiple parks and natural areas. This network offers everything from forested paths to panoramic ridge walks.

3. Two Summit Routes, One Goal

  • Main Trail: A 1.08-mile climb with 700 feet of elevation gain—a steady, family-friendly route.
  • West Route: A steeper 0.6-mile ascent with the same 700-foot climb, favored by thrill-seekers.

4. Downtown Eugene’s Southern Sentinel

The butte is the tallest point visible when looking south from downtown Eugene. Its silhouette dominates the skyline, especially at sunset.

5. Volcanic Bedrock

The butte’s core is basaltic andesite, formed 25–30 million years ago. This volcanic rock makes the summit resistant to erosion, preserving its iconic shape.

6. Access Points & Trailheads

Spencer Butte Park provides primary access, with trailheads like Willamette Trail and Blanton Road. Parking is free but fills quickly on weekends.

7. USGS Benchmark at the Summit

A small metal disk embedded in the summit marks the U.S. Geological Survey’s official elevation point. It’s a popular photo spot for peak-baggers.

8. Seasonal Wildlife Closures

Parts of the butte close seasonally to protect nesting peregrine falcons and other wildlife. Check Eugene Parks’ website for updates before hiking.

9. Glacial Erratics

Massive boulders scattered near the base are glacial erratics, deposited by ice-age floods over 13,000 years ago.

10. Local Art Inspiration

The butte’s dramatic profile has inspired countless paintings, photographs, and even a mural in downtown Eugene’s 5th Street Public Market.

Bonus: Hidden History

  • Ghost Stories: Some claim the spirit of a 19th-century trapper (namesake Spencer) haunts the trails.
  • School Partnerships: Local students join ecology projects here, studying everything from soil health to bird migration.

Pro Tips:

  • Use the coordinates to geotag your summit photos.