Trailamo is a 3D mountain route planning web app combining terrain analysis, live mountain layers, route creation tools, and open map data in the browser.

Trailamo is built for hikers, alpinists, ski tourers, mountain guides, clubs and outdoor teams who need better route planning and terrain awareness.

Can I import GPX files into Trailamo?

Yes. Import GPX files from any device, draw routes on 3D terrain, analyse the route, and share a planning link with your group.

Know the Mountain
Before You Go

Route planning, 3D terrain analysis, and live mountain data — all in your browser.

Join Explore Features

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Install as

Cesium Terrain Engine

lock_open_right Open Data Sources

globe GIS & WMS compatible

layers Multi-Layer Mapping

Route Planning

Plan Every Detail.
Before the First Step.

A true multi-layer planning environment with the richest map selection available — satellite, topographic, hiking, and more.

3D TerrainAltitude FilterCesium

True 3D Mountain Planning

Built on Cesium's 3D globe engine, Trailamo renders every peak, valley, and ridge in full three dimensions with real altitude profiles.

Cesium 3D terrain rendering
Advanced altitude range filtering
Elevation profile for every route
3D route preview before you go

SatelliteTopographicHiking Maps

Many Layers, One View

Switch between satellite, topographic, hiking, and hybrid base maps in seconds. Combine with overlays to build a complete picture of your route.

Satellite imagery with high-resolution detail
Official topographic maps from national providers
Dedicated hiking and alpine cartography
Custom base maps

MapTiler and TraceTrack integration in Trailamo

MapTilerTraceTrackIntegration

MapTiler & TraceTrack Integration

Integrates directly with MapTiler & Tracetrack for premium tile rendering for more route discovery and sharing.

MapTiler raster tiles support
TraceTrack raster library
Import/export GPX routes

Terrain Analysis

Read the Mountain.
Understand the Risk.

Advanced terrain tools used by mountain professionals — now accessible to every hiker, ski tourer, and alpinist.

Slope Analysis

Visualise gradient across the entire terrain. Identify sections that are safe for travel or technically demanding.

Avalanche Angle Overlay

Highlight slopes in critical avalanche-release angle ranges. A critical layer for backcountry safety.

Aspect Mapping

Understand which direction each slope faces. Essential for snow conditions — north-facing slopes retain snow far longer.

Advanced Altitude Filter

Filter the entire map to show only terrain within a defined elevation band. Find routes, huts, and hazards at your altitude.

Dynamic Hillshading

Photorealistic hillshading gives a clear read of ridgelines, gullies, and cliff bands in any light condition.

Elevation Profiles

Detailed ascent/descent profiles for any route. Cumulative elevation, gradient percentages, and key waypoint stats.

Route Tools

Create, Analyse
& Share Your Routes.

Draw routes directly on the 3D map, get instant terrain analysis, and share with your team — everything in one place before you leave the valley.

Draw RoutesSnap to TrailGPX

Build Your Route on the Map

Draw freehand or snap to existing trails directly on the 3D terrain. Import GPX files from any device, or study the community routes.

Freehand drawing and snap-to-trail modes
Import GPX files
Add waypoints, checkpoints and named markers
Edit and split routes at any point

Elevation ProfileSlope StatsRisk Assessment

Deep Route Analysis

Every route is instantly analysed against the terrain. Get a full breakdown of elevation gain, slope angles, aspect exposure, and avalanche risk — before you commit.

Full elevation profile with gain/loss breakdown
Slope angle statistics per route segment
Aspect and terrain exposure context
Shareable planning links for teams and partners

ShareTeam PlanningLink

Share the Full Plan

Generate a shareable link to your full route — including all overlays, terrain analysis, and waypoints — so the whole group is aligned before the day begins.

One link shares routes, overlays and analysis
No account required to view a shared plan
Works on any device

Live Mountain Data

Live Data,
Directly on the Map.

Trailamo pulls from authoritative open data sources to overlay real-time information directly on your planning map.

Live weather and snow overlay on mountain map

Live SnowWeatherAvalanche

Weather & Snow Layers

Overlay live snow depth, weather forecasts, and avalanche bulletins directly on your planning map. Make informed decisions backed by real data.

Live snow depth and snow cover overlay
Live weather with wind, precipitation, temperature
European avalanche bulletin integration
Forecast models up to 7 days ahead

Mountain huts and ski piste overlay in Trailamo

Mountain HutsSki PistesGPS Routes

Infrastructure & Routes

Find mountain huts, ski piste networks, and thousands of public GPS tracks from the community — all visible on the same map as your planned route.

Mountain hut locations with opening periods
Full ski piste network overlay
Public GPS routes from the community
TraceTrack trail database integration

Avalanche bulletin colour-coded zone overlay

Avalanche Bulletins

Danger ratings from European Avalanche Warning Services displayed as colour-coded zones, updated daily.

Live Weather Overlay

Wind speed, cloud cover, precipitation, and temperature mapped over the terrain. Spot summit conditions at a glance.

Progressive Web App

Install Once.
Use Anywhere.

Trailamo is a PWA — it runs in your browser but installs like a native app on any device. No app store required.

Trailamo mountain planning app on mobile device

Open Data

Powered by the Best
Open Data Sources

Trailamo aggregates authoritative open datasets so you always have the most accurate and up-to-date information.

Cesium Ion

Global 3D terrain and photorealistic tile rendering for immersive mountain visualisation.

layers

MapTiler

High-performance vector and raster map tiles with global coverage and custom styles.

route

TraceTrack

Community GPS route library with thousands of verified outdoor tracks worldwide.

snowflake

Avalanche Services

European Avalanche Warning Services providing daily danger ratings and forecasts.

partly_cloudy_day

Open Weather

Live meteorological data including wind, temperature, precipitation, and snow depth.

map

OpenStreetMap

Mountain huts, trails, and infrastructure from the world's largest open map dataset.

satellite_alt

NASA Terra MODIS

Live Snow & Snow Depth 8 days report

FAQ

Frequently Asked Questions

Everything you need to know before you start planning with Trailamo.

What is Trailamo?

Trailamo is a 3D mountain route planning app that combines terrain analysis, live mountain layers, route creation tools, and open map data — all in your browser.

Who is Trailamo for?

Built for hikers, alpinists, ski tourers, mountain guides, clubs and outdoor teams who want better route planning and terrain awareness before going into the mountains.

Can I import GPX files?

Yes. Import GPX files from any device, draw routes on the 3D terrain, analyse the route, and share a planning link with your group — all in one place.

Does it include avalanche and weather data?

Yes. Trailamo includes live avalanche bulletins, snow depth layers and weather overlays from authoritative open data sources, directly on your planning map.

Does Trailamo work on mobile?

Yes. Trailamo is a Progressive Web App (PWA) — it runs in any browser and installs on iOS, Android or desktop without an app store.

Is Trailamo free?

Open Trailamo in your browser right now — no account required. Install as an app for the full offline experience.

Get Started

The Mountain Is Waiting.
Are You Ready?