Osborne Mountain https://staging.wta.org/go-hiking/hikes/osborne-mountain https://staging.wta.org/@@site-logo/wta-logo.png Osborne Mountain South Cascades 47.3865, -121.3848 Length 10.7 miles, roundtrip Elevation Gain 3,474 feet Highest Point 4,920 feet Calculated Difficulty About Calculated Difficulty Hard Mountain views Dogs allowed on leash Save Hike to My Backpack Saved to My Backpack Continue reading Rating 3.00 out of 5 (5 votes) Log in to rate 16 trip reports for this trail Write a trip report 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) Learn Mount St. Helens — 40 Years After the Blast Learn Clearing a Path to Angry Mountain You can improve or add to this guidebook entry! Update page