Big Slide Mountain is an Adirondack classic, known for its striking views and gradual approach along the scenic Brothers ridge. As one of the few High Peaks that stands alone, without neighboring summits, it offers an independent and rewarding climb. This hike is well-loved for its steady incline, incredible vantage points, and an approachable challenge that makes it a favorite among first-time and seasoned hikers alike.
BIG SLIDE via The Brothers
What to know
The Garden Trailhead
Keene Valley
Distance
9.6 miles (7 mile loop)
Elevation Gain
Difficulty
Average Time
Highest Point
3,200 feet
3/7
6-7 hours
4,240 feet
Special Considerations:
Hikers are encouraged to take the loop in a counterclockwise direction to make the most of the views on the ascent. The exposed rock along The Brothers can become slippery in wet conditions, making appropriate footwear essential. Certain sections require minor scrambling, particularly between the First and Second Brother. Parking at the Garden Trailhead is extremely limited and fills quickly, especially on weekends—arrive early or plan accordingly.
Water Availability:
No water sources along The Brothers Trail; refill at Johns Brook Lodge if needed
Maximum Grade:
1,100 feet over 0.9 miles
approaching First Brother
Sunrise or Sunset:
Best for sunrise, with panoramic views from The Brothers
View Type:
Excellent views all along the Brothers ridge and summit. One of the best!
Near summit view from Big Slide
Check out the route! (Zoom)
View Photos of this Hike
Trail Summary
Alternate Approaches
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0.0 miles: Start at The Garden Trailhead
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0.5 miles: Cross small stream, begin steeper ascent
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1.0 miles: Reach first viewpoint
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1.5 miles: Summit of First Brother
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1.8 miles: Summit of Second Brother
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2.5 miles: Summit of Third Brother
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3.1 miles: Cross Slide Brook
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3.5 miles: Trail intersection—Big Slide summit or valley descent
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3.8 miles: Reach Big Slide summit
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4.1 miles: Return to junction; option to descend via JohnsBrook Valley
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5.2 miles: First river crossing in valley
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6.5 miles: Reach Phelps Trail; turn left to return to parking
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9.1 miles: Final half-mile back to The Garden Trailhead
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9.6 miles: Arrive at The Garden Trailhead
Big Slide via the Klondike Notch – 12.5 Miles, 2,800 Feet
This lesser-known route offers a remote and challenging alternative to the classic Brothers approach. The trail begins at South Meadows, off Adirondack Loj Road. From the parking area, hikers take the Klondike Notch Trail, winding through quiet forests and bypassing the more popular approaches.
The Klondike Notch Lean-to, about 4 miles in, is a great resting spot before beginning the ascent toward Big Slide. The trail gradually climbs, connecting with the Yard Mountain Trail, which leads directly to the summit. Though longer, this route provides solitude and an entirely different perspective of the mountain.