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Osborne Mountain

South Cascades
Length
10.7 miles, roundtrip
Elevation Gain
3,474 feet
Highest Point
4,920 feet
Calculated Difficulty About Calculated Difficulty
Hard
  • Dogs allowed on leash
  • Mountain views
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22 trip reports for this trail

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Hiking Osborne Mountain

Osborne Mountain

Map & Directions

Before You Go

WTA Pro Tip: Save a copy of our directions before you leave! App-based driving directions aren't always accurate and data connections may be unreliable as you drive to the trailhead.

More Hike Details

Trailhead

South Cascades

Osborne Mountain (#250)

News

What winter flooding will mean for towns and trails, and how hikers can help

December 19, 2025

Learn

Angry Mountain: One trail's role in a sustainable system

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Osborne Mountain

22 Trip Reports

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Trip Reports