Greenstone Section 4 - 7.2mi Technical Hike

Q: Can I do this as a day hike?

No. Isle Royale only permits overnight camping; day hiking isn't allowed. Plan 2-3 days minimum including ferry time.

Q: How hard is the navigation?

Trail is marked but conditions change and forest is dense. Map and compass are mandatory, not optional. GPS may fail under tree cover.

Q: What if I get injured on the trail?

You're responsible for self-rescue. No cell service. NPS can dispatch rangers but rescue takes hours. Carry emergency communication device.

Q: Is water always available?

Lakes and streams are present but ALL water requires treatment. Filter or purify everything. Carry backup water in case a source is unexpectedly dry.

Q: What's the biggest challenge—fitness or navigation?

Both equally matter. The terrain is technical (rocks, roots, steep) AND navigation demands are high. Fit hikers who can't navigate get lost. Good navigators who aren't fit turn back.

Greenstone Section 4: Hike from Chickenbone Lake to Hatchet Lake

Distance

7.2 mi

Est. Time

6-8 hours for the traverse; most hikers split this into multi-day backpacking route with overnight camping

Route Type

Out-and-back backcountry section of Greenstone Ridge Trail

Dogs Allowed

Best Season

Spring, Summer, Fall (April 16 - October 31 park operating window; ferry services May-September)

Overview

About This Trail

This is no casual walk. Chickenbone to Hatchet Lake is a 7.2-mile technical traverse through remote, forested wilderness with rocks, roots, and challenging slopes that demand map-reading skills and physical toughness. Hikers find forested ridgetop hiking punctuated by scenic vistas—particularly Mount Siskiwit in early and late season when foliage thins. This is one of Isle Royale's most difficult trails to access by water, meaning you've already proven your grit before you start. Go for solitude, navigation challenges, and true remote backcountry.

Highlights

Difficulty Level

Strenuous

Trail Highlights

Mount Siskiwit offers picturesque views in early and late season when vegetation thins. Hikers pursue this for solitude—it's one of the park's most remote and difficult-to-access trail sections.

Insider Tips

• Mount Siskiwit's best views require a scramble off-trail; go early or late season when foliage is thin • The Hatchet Lake Trail connects to Minong Ridge (harder still)—don't accidentally commit to that upgrade • Most hikers do this as part of a longer Greenstone Ridge backpack, not as an isolated section • Water quality: lakes are pristine but require treatment • The 'remote trail segment' rating means rescue times are long—plan conservatively

Best Season to Hike

Spring, Summer, Fall (April 16 - October 31 park operating window; ferry services May-September)

Hiking Tips

Pack a map, compass, and know how to use both—trail conditions change and markers fade
Bring 2-3 liters of water minimum; lakes are present but require treatment
Trekking poles are not optional on roots and rocks; they save your knees on descent
Move fast on the exposed ridgeline sections; weather can close in quickly
Know your fitness level; 7.2 miles on technical terrain isn't 7.2 easy miles
Backcountry camping permits are mandatory; book months ahead
Inform a ranger of your route and expected return; you're responsible for self-rescue

Family Info

Not recommended for young children. The technical terrain, rocks, roots, and narrow trail pose fall risks. No bailout options on a remote island. Only experienced young hikers with good balance and footwork should attempt.

What Hikers Say

Experienced backpackers rank this section as technically demanding but rewarding for those seeking solitude and navigation challenges. The remote location and rocky terrain demand respect and preparation, but hikers who come equipped report it's worth the effort.

Details

Trail Specifications

Distance: 7.2 miles

Duration: 6-8 hours for the traverse; most hikers split this into multi-day backpacking route with overnight camping

Difficulty: Strenuous

Route Type: Out-and-back backcountry section of Greenstone Ridge Trail

Surface: Rocky and rooty; 18 inches wide with uneven, technical footing

Getting There

Trailhead: Chickenbone Lake (western trailhead); Hatchet Lake (eastern trailhead). Access via ferry from Rock Harbor, Windigo, or water taxi from Rock Harbor Lodge.

Parking: Not applicable; backcountry trail accessed by ferry

Fills Up: Not applicable; ferry access via scheduled departures

Requirements

Permit Required

Backcountry camping permit required for Isle Royale National Park. Reserve in advance through NPS website. Permits are limited and high-demand during peak season. No day-hiking permits available—overnight camping only for this section.

Fees: $7 per person per day entrance fee (children 15 and under free); America the Beautiful annual pass accepted ($80)

Shuttle Required

Isle Royale ferry services (Ranger III, Isle Royale Queen IV, Voyageur II) run May-September. Private water taxi available from Rock Harbor Lodge. Reservations required for ferry and permit. Most hikers access this remote trail section via ferry from Rock Harbor or Windigo.

Trail Rules

Dogs: No; pets are not permitted on Isle Royale trails

Biking: No; foot traffic only

Trail Markers: Trail is marked but changing conditions and dense forest make navigation challenging—map and compass essential

Map/GPS recommended

Trail Features

Conditions & Safety

Water: Chickenbone Lake and Hatchet Lake are adjacent to trailheads; additional unnamed lakes and streams near the trail require water treatment (filter or purify all water)

Shade: Mostly shaded through forested sections; exposed ridgetop clearings offer views but limited sun protection

Cell Service: Unknown; assume no service. Radios and emergency beacons are your lifeline.

Hazards:

The 18-inch-wide trail is technically challenging with rocks and roots; steep pitches demand attention. Ridgeline sections offer some exposure but not dramatic cliff edges. Changing conditions mean you'll need map and compass; GPS may fail in dense forest. This is the most remote section of the park's main trail system—emergency rescue takes hours. Carry emergency shelter and communication device.

Emergency: NPS Ranger Stations at Rock Harbor or Windigo. In emergencies, use emergency beacon or paddle/boat to nearest ranger station.

Crowd Info

Typical Crowds: Ghost town; this remote section sees a fraction of Isle Royale's already-sparse traffic

Peak Times: July-August see slightly more hikers, but 'crowded' at Isle Royale still means you might see others every few miles

Accessibility & Family

Accessibility:

Rocky, rooty, and steep; 18 inches wide with uneven footing. Not suitable for mobility devices or inexperienced hikers.

Family Notes:

Nearby Facilities

West Chickenbone Campground, East Chickenbone Campground, and Hatchet Lake Campground are at/near the trailheads. Rock Harbor has facilities and ranger station. Windigo has ranger station and basic facilities.

What Hikers Say

FAQs

Do I need previous backcountry experience?

Yes. This is remote and requires navigation skills, fitness for technical terrain, and comfort being far from help. Not a good first-time backpack.

Can I do this as a day hike?

How hard is the navigation?

What if I get injured on the trail?

Is water always available?

What's the biggest challenge—fitness or navigation?

📖 National Park Service — Greenstone Section 4: Hike from Chickenbone Lake to Hatchet Lake (official page) (checked 2026-07-06) 📖 National Park Service — Isle Royale National Park fees, hours & conditions (checked 2026-07-05) 📝 YourNPGuide Editorial

Information is compiled from official sources, verified traveler reviews, and editorial research. Learn how YourNPGuide works →

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