Stage 3 of 4 · Iso Karhunkierros

Km 40 → Bistron rinne

Distance
37.2 km
Ascent
+819 m
Descent
-673 m
Est. Time
10h 12m
Altitude
144.5–488.8 m
Type
point-to-point
⛰️ Rolling Hills🌲 Lowland📏 Ultra Distance
📍

Start: Km 40

No nearby transit stop. Consider getting dropped off or using the previous stage's end stop.

🚌

Getting Out

Bistron rinne (bus stop)

55m from trail end · ~1 min walk

📥 Download GPX 🗺️ Open in Planner 🏔️ 3D Flyover 37.2 km · 819m gain

Elevation Profile

150m200m250m300m350m400m450m500m0 km5 km10 km15 km20 km25 km30 km35 km37 km489m145m
Flat (<5%) Easy (5–10%)

Route Map

🗺️ Open in Planner → | 🏔️ View 3D Flyover →

Segment Breakdown

Auto-analyzed from the elevation profile. Each segment shows the dominant character for planning your effort.

SegmentDist↑ / ↓TimeCharacter
Km 40 → km 13.8 (238m)
145–292m
13.8 km+579m / -618m4h 02m🏃 Highly Runnable
km 13.8 (238m) → km 25.7 (330m)
220–382m
11.9 km+427m / -335m3h 15m📈 Climbing
km 25.7 (330m) → Bistron rinne
330–489m
11.5 km+639m / -554m3h 38m📈 Climbing
Total37.2 km+819m / -673m10h 56m

Pace & Fuel Calculator

Adjust your flat 10K pace to see personalized finish time, calorie burn, and hydration needs.

7:00 /km
4:00 /km (elite) 12:00 /km (leisure)
Fast Hiker / Jogger
Est. Finish Time
5h 38m
Calories
2,936 kcal
Water Needed
4.2 L
Effort Distance
48.8 km
flat-equivalent
🍫 Recommended: ~45g carbs/hr (254g total) 🧂 Electrolytes: ~2820mg sodium/hr 🩹 Consider anti-chafe and blister prevention

Terrain Analysis

Runnability
0%
Steep / Technical
% of route below 15% gradient
Climb Ratio
22 m/km
Moderate profile
↑ 819m ↓ 673m

Surface & Technicality

Terrain Difficulty Breakdown
Runnable Flat (72%) Easy Grade (28%)
Surface Type
Dirt/sand (35%) Wood (19%) Dirt (16%) Unknown (15%) Ground (8%) Gravel (3%) Sand (2%) Fine gravel (1%) Unpaved (1%) Compacted (1%) Mud (1%)

🏃 Mostly runnable with gentle terrain. Great for fast trail running.

Surface Breakdown

Dirt/sand (34%)
Wood (19%)
Dirt (16%)
Unknown (15%)
Natural Ground (8%)
Gravel (3%)
Sand (2%)

Current Conditions

Loading live weather...

Conditions for June

ℹ️ Shoulder season
Snow Risk
0%
Unlikely
Mud Risk
15%
Low
Ice Risk
0%
Unlikely

✅ Snow unlikely at this elevation in June. Trail conditions expected to be clear.

Best months: Jun, Jul, Aug, Sep

Suggested Gear List

Auto-generated based on 37.2 km, 819m ascent, max altitude 488.8m, ~10h duration.

Essential 5 items
  • 👟
    Trail running shoes / hiking boots
    Required for any trail
  • 📱
    Phone (charged) + offline map
    Navigation & emergency contact
  • 💧
    3L hydration vest
    No water sources on route
  • 🍫
    Trail mix, bars & sandwich
    Est. 3576 kcal burn
  • 🆘
    Emergency space blanket
    Critical for preventing hypothermia if you stop moving
Recommended 5 items
  • 🧴
    Sunscreen
    Basic sun protection
  • 🧥
    Light rain jacket
    Weather changes fast in the mountains
  • 🔦
    Headlamp
    10h route — plan for delays
  • 🩹
    Mini first aid kit
    Blister plasters, tape, antiseptic
  • 🧊
    Microspikes / light crampons
    Snow risk in Nov, Dec, Jan
Nice to have 2 items
  • 🥢
    Trekking poles (optional)
    819m ascent — helps on descents
  • 🦵
    Gaiters
    Keep snow out of boots

Logistics

This route runs from Km 40 to Bistron rinne (37.2 km by trail). You'll need to arrange transport back to your starting point.

Start — Getting There
Km 40
No transit stops detected nearby.
Finish — Getting Back
Bistron rinne
🚌 Bistron rinne (55m)
🗺️ Transit directions (Google)
←

Previous Stage

Iso Karhunkierros Stage 2: Km 20 → Km 40

Next Stage

Iso Karhunkierros Stage 4: Bistron rinne → Juuma Retkietappi

→
← Back to all 4 stages of Iso Karhunkierros

Take this route with you

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Route data from OpenStreetMap © contributors, licensed under ODbL. Updated 2026-04-01.