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Hiking in Big Slide Mountain: trails, map and practical info

Adirondacks • New York

4.6 Appreciated by 24 hikers
François Dumaine
By François DumaineContributor since 2015Updated 29/05/2026
Difficulty
Hard
Distance
14 km
Elevation
853 m
Duration
4h50
Max altitude
1,241 m

Tackle 13.7 km and 853 m of elevation gain across New York's High Peaks, summiting four distinct mountains including Big Slide's iconic rock slide. This hard, 4h50 adventure in the Adirondacks near Lake Placid demands steady climbing but rewards with panoramic views of Mount Marcy and the surrounding wilderness.

Recommended for :
Intermediate hikers

Ready to explore Big Slide Mountain? Here's everything you need to know before you go!

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Trail description

Description

Big Slide Mountain rises 4,240 feet above the Adirondack wilderness, earning its place among New York's celebrated High Peaks. The mountain takes its name from the dramatic rock slide scarring its eastern face—a geological feature that catches your eye long before you reach the trailhead and serves as a constant landmark during your approach.

What sets Big Slide apart from other Adirondack peaks isn't just its impressive elevation, but the journey required to reach it. The standard route via The Brothers Trail from the Garden Parking Area in Keene Valley covers 7.8 miles round trip, but those miles pack in more variety than most single-peak hikes in the region. You'll traverse three distinct summits—First Brother, Second Brother, and Third Brother—before making the final push to Big Slide itself.

The Trail Experience

Starting from the Garden Parking Area, the trail immediately establishes its moderately challenging character. The path is well-marked and maintained, but don't let that fool you into thinking this is a casual walk. The route demands steady climbing as you work your way up and over The Three Brothers, each peak offering its own personality and views.

The terrain varies significantly throughout the hike. Early sections wind through dense Adirondack forest where towering conifers create a cathedral-like atmosphere. As you gain elevation, the forest opens up, revealing glimpses of the surrounding peaks and valleys. The trail surface ranges from packed earth and roots to rocky scrambles, particularly as you approach each summit.

Between the peaks, you'll pass through Klondike Notch, a distinctive saddle that provides a brief respite from climbing while offering views into the heart of the High Peaks region. Marcy Field appears along the route as well, giving you a sense of the diverse landscapes packed into this single hike.

Each of The Brothers presents unique vantage points and photo opportunities. These aren't just waypoints to endure—they're destinations worth savoring. The views from these intermediate peaks build anticipation for what awaits on Big Slide's summit while providing excellent spots to rest, refuel, and assess weather conditions ahead.

Summit Rewards

Big Slide's summit delivers the panoramic views that make Adirondack peak-bagging so addictive. The sweeping vistas encompass the Great Range, with Mount Marcy—New York's highest peak—visible on clear days. The perspective from 4,240 feet reveals the intricate network of peaks, valleys, and lakes that define this wilderness region.

The summit itself is more exposed than the forested approach, making it crucial to monitor weather conditions. What might be a pleasant day in the valleys below can turn challenging quickly at elevation, especially during shoulder seasons or when afternoon thunderstorms develop.

Wildlife and Natural Features

The diverse elevations and habitats along the Big Slide route support varied wildlife populations. Deer frequent the lower elevations, while various bird species inhabit different zones from valley floor to summit. The lush forests provide habitat for typical Adirondack species, and the changing elevations mean you'll experience different ecological zones during a single hike.

The prominent rock slide that gives the mountain its name becomes increasingly impressive as you approach. This geological feature isn't just scenic—it tells the story of the powerful natural forces that continue to shape these ancient mountains.

Planning Your Visit

The 7.8-mile round trip typically requires 6 to 8 hours, though your pace and time spent enjoying the multiple summits will determine your actual duration. The 853 meters of elevation gain is distributed across the entire route, but the multiple ascents and descents over The Brothers make this feel like more climbing than a single-peak hike of similar statistics.

Pack essentials including plenty of water and snacks—the multiple peaks mean you'll be working steadily for hours. Weather conditions can change rapidly at elevation, so bring layers and rain protection even on seemingly perfect days. The exposed summit areas make you vulnerable to sudden weather changes that might not affect lower elevations.

The Garden Parking Area in Keene Valley serves as your starting point, but arrive early during peak seasons as this popular trailhead fills quickly. The lot provides access to several High Peaks routes, making it a busy hub for serious hikers.

Extended Adventures

Big Slide's location makes it an excellent base for exploring other High Peaks region attractions. Johns Brook Lodge offers a backcountry accommodation option for multi-day adventures, while Basin Mountain provides additional hiking opportunities for those looking to extend their time in the area.

After completing your hike, Lake Placid sits just a short drive away, offering dining, lodging, and recovery options. The contrast between wilderness summit and resort town amenities makes for a satisfying end to your mountain adventure.

Remember to follow Leave No Trace principles throughout your visit. The popularity of Adirondack hiking means these trails see heavy use, and preserving the experience for future visitors depends on every hiker's commitment to minimal impact practices.

Ready to go?

Everything you need to know before you go

Where?

Address
Big Slide Mountain, Keene, NY 12943, USA
GPS coordinates
44.1822721, -73.8704202
Phone
Not available

Starting Point

To access the hiking trails, you can start at the Garden Parking Lot located at 3 Mountain Lane, Keene Valley, NY 12943. This is a popular trailhead for reaching your destination. Another option is to begin from the Adirondack Loj, which is situated at 1002 Adirondack Loj Road, Lake Placid, NY 12946. Both locations provide access to different routes leading to your hiking objective.

When?

Opening hours
No information
Varies by season
Best season
Fall
Spectacular colors
Best time
Early morning
Less crowded
Weather (next days)
Loading

How much?

Entry fees
Adult
Not available
Child
What to bring?
Gear
  • Hiking shoes Essential
  • Layered clothing Essential
  • Rain jacket Essential
  • Trekking poles
  • Headlamp
Download the PDF checklist
Water & food
2L minimum
No water point on the trail
Bring energy snacks for a 4h+ hike
Good to know
Park rules
No dogs
Safety
Download the GPX before you go
Limited cellular coverage on the trail
Slippery after rain
Be careful on rocky sections
In an emergency
Emergency
911
Parking GPS
44.1822721, -73.8704202
Center
Not available

Hikers' opinions

4.6
8 Reviews
M
Marcus
Nov 15, 2025
This Adirondacks peak delivers an intense cardiovascular challenge with nearly 854 meters of elevation gain spread across the route. Starting from the Garden Parking Lot early helped us avoid the midday crowds. Trail conditions were well-maintained throughout, and the panoramic views from the summit made every step worthwhile. Budget extra time for photography and rest breaks.
J
Jennifer
Aug 22, 2025
Outstanding mountain experience in the Adirondacks region. The sustained elevation gain is manageable for experienced hikers who prepare adequately. We completed the hike in approximately seven hours including breaks. The trail markings were clear even through steeper sections, and the summit vistas justify the physical effort required. Parking fees apply, so budget accordingly.
D
David
Jun 10, 2025
Rewarding but demanding hike that tests your endurance and determination. The elevation gain is steady and relentless, requiring good fitness levels. We encountered well-maintained trail conditions despite some challenging steep pitches. The summit rewards your effort with spectacular panoramic views across the Adirondacks. Note that dogs are not permitted on this trail.
S
Sarah
Mar 18, 2025
Solid mountain hike with significant physical demands and beautiful alpine scenery. The trail is generally well-marked but steep in sections, requiring careful footing. Expect to spend most of your day on this adventure, especially if you want to enjoy the summit views properly. The parking situation requires payment, which is worth noting when planning your visit.
R
Robert
Sep 5, 2024
Challenging Adirondacks adventure that delivers impressive summit views and genuine accomplishment. The sustained elevation gain keeps your heart rate elevated throughout the ascent. Trail conditions were generally good during our visit, with clear markings guiding us upward. Plan for a full day of hiking and bring plenty of water and snacks for the journey.

FAQ - Frequently asked questions

Everything you need to know
Hard
853.00 M
1241.00 M
4h50
No
No
No, Big Slide Mountain is rated as a Hard difficulty hike and is not recommended for beginners. With an elevation gain of 853 m and a total distance of 13.7 km, this trail requires good physical fitness and hiking experience. Consider starting with easier trails in the Adirondacks before attempting this challenging route.
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Update : June 2026