Stage 4 of 15 · Colorado Trail

Start → End

Distance

25.5 km

Ascent

+812 m

Descent

-688 m

Est. Time

7h 01m

Altitude

3,149–3,605.9 m

Type

point-to-point

🏔️ Mountainous❄️ Alpine

Trail route lab

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Open a planning copy, adjust the line, then share the version you would actually run or hike.

25.5 km Distance812 m Climb7h 01m Est. time3,606 m High pointEPIC Difficulty

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📍

Start: Start

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

📍

End: End

No nearby transit stop at the end. Check the next stage's start stop.

Elevation Profile

Flat (<5%) Gentle (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.

Segment	Dist	↑ / ↓	Time	Character
Start → km 8.5 (3288m) 3,277–3,606m	8.5 km	+248m / -567m	2h 23m	📉 Descending
km 8.5 (3288m) → km 17.7 (3308m) 3,239–3,341m	9.3 km	+341m / -320m	2h 35m	🏃 Highly Runnable
km 17.7 (3308m) → End 3,149–3,343m	7.8 km	+313m / -356m	2h 14m	🏃 Highly Runnable
Total	25.5 km	+812m / -688m	7h 13m

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

4h 16m

Calories

2,747 kcal

Water Needed

4.6 L

Effort Distance

37.1 km

flat-equivalent

🍫 Recommended: ~45g carbs/hr (192g total) 🧂 Electrolytes: ~2136mg sodium/hr 🩹 Consider anti-chafe and blister prevention

Terrain Analysis

Runnability

Steep / Technical

% of route below 15% gradient

Climb Ratio

32 m/km

Moderate profile

↑ 812m ↓ 688m

Surface & Technicality

Terrain Difficulty Breakdown

Runnable Flat (77%) Easy Grade (23%)

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

Surface

≈2% paved · ≈98% unpaved

Mostly unpaved

Estimated for the full route from the 92% with mapped surface data in OpenStreetMap.

Current Conditions

Loading live weather...

Conditions for July

ℹ️ Shoulder season

Snow Risk

Unlikely

57% north-facing slopes

Mud Risk

10%

Low

Ice Risk

Unlikely

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

Best months: Mar, Apr, May, Jun, Sep, Oct, Nov

Planning ahead?

Get one email the moment this route melts out and is snow-free. We use your verified account email — never typed into a form.

Suggested Gear List

Auto-generated based on 25.5 km, 812m ascent, max altitude 3605.9m, ~7h duration.

Essential 8 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. 2108 kcal burn
🧴
Sunscreen SPF 50+

UV intensifies above 2000m
🧢
Sun hat / cap

Exposed alpine terrain
🧥
Windbreaker / shell jacket

Summit at 3605.9m — wind chill
🆘
Emergency space blanket

Critical if injured at altitude

Recommended 5 items

🕶️
Sunglasses (cat 3+)

Snow & rock glare at altitude
🧤
Warm mid-layer (fleece)

Temps drop ~6°C per 1000m
🔦
Headlamp

7h route — plan for delays
🩹
Mini first aid kit

Blister plasters, tape, antiseptic
🧊
Microspikes / light crampons

Snow risk in Dec, Jan, Feb

Nice to have 2 items

🥢
Trekking poles (optional)

812m ascent — helps on descents
🦵
Gaiters

Keep snow out of boots

Logistics

This route runs from Start to End (25.5 km by trail). You'll need to arrange transport back to your starting point.

Start — Getting There

Start

No transit stops detected nearby.

Finish — Getting Back

End

No transit stops detected nearby. Check local timetables.

🗺️ Transit directions (Google)

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Colorado Trail Stage 3: Start → End

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Colorado Trail Stage 5: Start → End

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