Grinnell Glacier Trailhead

Strenuous 10-mile out-and-back to Grinnell Glacier. Check current trail access; a separately ticketed lake boat can shorten the approach but leaves a substantial climb.

Insider tip

Use the boat shuttle to dramatically cut mileage

Insider tip

Start early to secure parking and beat heat

When to come

Start early when the trail is accessible; check current NPS snow and closure reports. Confirm lake-boat operating dates and return tickets separately if using…

Trail

Trail★ 4.9 on Google

YOUR VISIT, YOUR WAY

What would you love to do here?

A glacier viewpoint rewards a strenuous Many Glacier hike. NPS lists 5.0 miles one way from the trailhead with 2,596 feet of cumulative ascent and 1,015 feet of descent on the outbound leg. Retracing the route adds climbing on the return. Lake boats can shorten the approach but leave a substantial climb. Check current trail access and operator schedules.

Make the glacier viewpoint the day’s goal

Keep the day centered on this demanding hike rather than adding another major outing. Check current snow and trail conditions; the return journey also needs time.

Grinnell Glacier Trailhead · High effort

With children

Choose this only when the whole group can manage a long mountain hike. Set a turnaround time and keep easier alternatives available; reaching the viewpoint is optional.

Consider the boat-assisted approach

Compare concession boat departures from Many Glacier Hotel. NPS lists 3.7 hiking miles one way from the boat landing, with 2,461 feet of cumulative ascent and 871 feet of descent outbound. Boat tickets and return departures are separate from the road shuttle; confirm operating dates and availability.

Many Glacier Hotel boat departure, then the Grinnell Glacier route · High effort

With children

The boat shortens the approach but leaves a substantial climb. Check departures, return arrangements and current trail access before committing the group; saving this option does not reserve seats.

Saved choices are ideas, not reservations. Check current access, conditions and opening times before travel.

Planning sources · checked September 7, 2026

Grinnell Glacier Trailhead offers a challenging 10-mile out-and-back to Grinnell Glacier. The route features rocky ledges, scree, exposure and bear country. Check current trail access. A lake boat can shorten the approach; the road shuttle does not shorten the hike.

Quick facts

Distance Miles
10
Route Type
Out-and-back
Difficulty
strenuous
Difficulty Level
Strenuous

CHOOSE YOUR NEXT WALK

Is this the right hike for your day?

Why choose this hike?

Trail Highlights
Close-up views of Grinnell Glacier, alpine meadows, glacial lakes, and distant peaks. High reward for the effort.
Best For
  • Experienced hikers
  • Photographers
  • Wildlife watchers
  • Alpine scenery enthusiasts

What the outing demands

Effort Verdict
Strenuous: 10 miles out and back from the trailhead. The NPS outbound profile is 5.0 miles with 2,596 feet of ascent and 1,015 feet of descent, not the total ascent for both directions. From the concession boat landing, NPS lists 3.7 miles one way with 2,461 feet of ascent and 871 feet of descent; the boat reduces walking distance but leaves a substantial climb.
Estimated Time
5-7 hours

Where and when it fits the day

Trailhead Location
Grinnell Glacier Trailhead, Many Glacier Road, Glacier National Park, MT. Coordinates: 48.79721, -113.66843
Best Time To Visit
Start early when the trail is accessible; check current NPS snow and closure reports. Confirm lake-boat operating dates and return tickets separately if using the boat-assisted route.

Explore your choices Choose your visit options.

Trail profile

Distance Miles
10
Route Type
Out-and-back
Difficulty
strenuous
Difficulty Level
Strenuous
Elevation Gain Feet
2596
Trail Surface
Primarily packed dirt and loose scree, with some boulder fields and rock terraces
Trail Features
  • Grinnell Glacier view
  • Grinnell Falls
  • Grinnell Lake
  • Upper Grinnell Lake
  • alpine meadows
  • wildflowers

Trailhead & access

Parking Lot Size
Small, limited parking lot
Parking Fill Time
Typically full early, especially on weekends
Shuttle Details
The road shuttle and lake boats are separate services. Xanterra listed its 2026 Many Glacier Hiker Shuttle for July 1–September 21, first-come, first-served with no advance reservations and very limited space. That published season has ended. Glacier Park Boat Company operates separately; check its operating dates, tickets and return departures. NPS lists 3.7 hiking miles one way from the boat landing versus 5.0 from the trailhead.

Permits & conditions

Permits Required
Yes
Permit Details
Park entrance pass required. In the Many Glacier area, no vehicle reservation is required in 2026; park entrance passes available at Recreation.gov or in person at the park entrance.
Fees
Glacier National Park entrance fee is $35 per vehicle for seven days. Boat shuttle fees apply.
Trail Status
Not live-verified. Check NPS trail conditions and closures before departure.
Seasonal Closures
Snow can linger on upper sections; check conditions. Typically snow-free mid-June to early September; closures possible outside that window due to weather.

Facilities & rules

Restrooms At Trailhead
Yes
Water Sources
Potable water pump at trailhead picnic area; creeks may be present, filtering recommended

Safety & strategy

Hazards
  • Bear country (grizzly and black bears)
  • Afternoon thunderstorms
  • Sun and wind exposure
  • Lingering snowfields early in the season
  • Slippery wet rocks near waterfalls
  • Steep drop-offs on final push
Cell Service
Limited or no service in remote mountain areas
Crowd Level
Very popular and can be crowded, especially during peak season and with shuttle boat users
Peak Crowd Times
Peak mid-summer; mornings are busiest; weekends see larger crowds
Parking Strategy
Parking strategy: The main Grinnell Glacier Trailhead lot is small and typically fills early. Overflow parking is available along Many Glacier Road. With limited parking, the Many Glacier Shuttle is recommended. For a shorter route, use the Glacier Park Boat Company shuttle across Swiftcurrent Lake to Lake Josephine to shave miles. Restrooms: vault toilets at the trailhead and farther up the trail.
Ideal Hiker Profile
For experienced day hikers comfortable with long distances, substantial climbing and exposed ledges. NPS lists 2,596 feet of cumulative ascent on the outbound 5.0 miles; returning adds further climbing. Prepare for rugged footing, bear country and changing weather. Carry adequate water and sturdy footwear. Only the lake boat shortens the hiking approach; confirm its schedule and tickets.
Best Season
Mid-June through September
Tips Advice
  • Carry 2 liters of water minimum
  • Bear spray and knowledge of use
  • Trekking poles for rocky sections
  • Layered clothing for changing mountain weather
  • Start cold and pace yourself

More details

Shade Level
Limited shade, especially in the latter half of the hike
Map Recommended
Yes
Snow Dates
Typically snow-free from mid-June to early September; snow can linger on upper sections
Mud Season
Mud and slick footing expected during snowmelt in early season
Bug Season
Mosquitoes and other biting insects can be present during summer months
Insider Tips
  • Use the boat shuttle to dramatically cut mileage
  • Start early to secure parking and beat heat
  • Consider taking the boat one-way to reserve energy for the climb or for the descent
  • Bear spray and windproof layers are a must
  • Trekking poles help on rocky sections
Recent Updates
No vehicle reservations are needed in 2026 for Going-to-the-Sun Road or the Many Glacier area. Trail conditions vary; check NPS Glacier status page before your trip.
Family Friendly Notes
Strenuous and long; generally not recommended for children under 10 due to distance, elevation, and hazards. Older, experienced children (10+) may manage with proper prep.
Nearby Facilities
Vault toilets at trailhead and a quarter-mile from the glacier basin
Photo Ops
Photo ops: Capture Grinnell Glacier and surrounding peaks from exposed ledges; sunrise over Swiftcurrent Lake and Lake Josephine from the boat shuttle; close-ups of scree and boulder fields on the approach; reflective lake scenes along Swiftcurrent Lake.
Review Summary
Hikers report a demanding climb with a lasting payoff: glacier access and alpine lakes. Crowds can be heavy during peak season and with boat shuttles; arriving early and using the shuttle improves the experience. Prepare for a long day and carry adequate water and sun protection.

Location

Grinnell Glacier Trailhead at the turquoise Grinnell Lake in Glacier National Park.Grinnell Glacier Trailhead at Glacier National Park rises above talus and waterfalls with jagged peaks setting a dramatic alpine scene.Grinnell Glacier Trailhead sign at Glacier National Park marks distances to Josephine Lake, Grinnell Lake, and Grinnell Glacier in lush forest.Grinnell Glacier Trailhead hikers navigate rocky ledges beside a waterfall along Glacier National Park’s Grinnell area.

Frequently asked questions

Are bears common on this trail?

Yes. Travel in groups, make noise, and carry bear spray; store food properly and stay alert.

Is there a shuttle and how do I book it?

The road shuttle and lake boats are separate services. Xanterra listed its 2026 Many Glacier Hiker Shuttle for July 1–September 21, first-come, first-served with no advance reservations and very limited space. That published season has ended. Glacier Park Boat Company operates separately; check its operating dates, tickets and return departures. NPS lists 3.7 hiking miles one way from the boat landing versus 5.0 from the trailhead.

Is this trail suitable for beginners?

Not ideal for beginners. It’s long and strenuous with exposed sections and potential hazards. Proper conditioning and gear are essential.

Do I need a permit or special ticket?

A park entrance pass is required. Glacier does not require vehicle reservations in 2026. Lake-boat tickets and overnight wilderness permits are separate; check NPS closures and operator schedules.

What gear is non-negotiable?

Sturdy boots with grip, trekking poles, layers for mountain weather, sun protection, and bear spray.

When is the glacier most accessible by hike?

Mid-June to early September is the typical window when snow is off the upper sections; conditions can shift fast with weather.

What’s the best energy plan for this hike?

Start early, hydrate aggressively, and consider using the boat shuttle to preserve energy for the ascent and descent.

Avalanche Lake Trailhead

2.3 miles one way, 741 ft gain. Carry water and bear spray; allow enough daylight for the return hike.

Apikuni Falls Trail

Steep waterfall crusher: 0.8 miles, 651ft elevation gain. Short burst, big payoff.

Sources

Editorial review: YourNPGuide Editorial Team. Information is compiled from official sources, verified traveler reviews, and editorial research; no firsthand visit is implied unless explicitly documented. Learn how YourNPGuide works.

Last updated December 2025. Report an issue.