Stage 4 of 4 · Iso Karhunkierros

Bistron rinne → Juuma Retkietappi

Distance

26.5 km

Ascent

+440 m

Descent

-610 m

Est. Time

7h 07m

Altitude

225.2–488.8 m

Type

point-to-point

⛰️ Rolling Hills🌲 Lowland

Trail route lab

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26.5 km Distance440 m Climb7h 07m Est. time489 m High pointHARD Difficulty

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🚌

Getting Here

Bistron rinne (bus stop)

55m from trailhead · ~1 min walk

🚌

Getting Out

Juuma Retkietappi (bus stop)

1571m from trail end · ~20 min walk

Elevation Profile

Flat (<5%) Gentle (5–10%) Steep (15–25%)

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.

Segment	Dist	↑ / ↓	Time	Character
Bistron rinne → km 5.9 (473m) 331–489m	5.9 km	+477m / -418m	2h 11m	📈 Climbing
km 5.9 (473m) → km 17.1 (281m) 278–473m	11.2 km	+270m / -463m	2h 55m	📉 Descending
km 17.1 (281m) → Juuma Retkietappi 225–281m	9.3 km	+227m / -262m	2h 22m	🏃 Highly Runnable
Total	26.5 km	+440m / -610m	7h 29m

Pace & Fuel Calculator

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

Your flat 10K pace 7:00 /km

4:00 /km (elite) 12:00 /km (leisure)

Fast Hiker / Jogger

Est. Finish Time

3h 53m

Calories

1,582 kcal

Water Needed

2.3 L

Effort Distance

33.9 km

flat-equivalent

🍫 Recommended: ~45g carbs/hr (175g total) 🧂 Electrolytes: ~1942mg sodium/hr 🩹 Consider anti-chafe and blister prevention

Terrain Analysis

Runnability

Steep / Technical

% of route below 15% gradient

Climb Ratio

17 m/km

Gentle profile

↑ 440m ↓ 610m

Surface & Technicality

Terrain Difficulty Breakdown

Runnable Flat (84%) Easy Grade (16%)

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

Surface

≈0% paved · ≈100% unpaved

Mostly unpaved

Estimated for the full route from the 51% with mapped surface data in OpenStreetMap.

Current Conditions

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Conditions for July

ℹ️ Shoulder season

Snow Risk

Unlikely

Mud Risk

10%

Low

Ice Risk

Unlikely

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

Best months: Jun, Jul, Aug, Sep

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Suggested Gear List

Auto-generated based on 26.5 km, 440m ascent, max altitude 488.8m, ~7h 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. 1934 kcal burn
🆘
Emergency space blanket

Critical for preventing hypothermia if you stop moving