BEYOND

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Download an area to use offline

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Contents
Short answer

Draw an area of up to 16 × 16 km at medium resolution, or 6 × 6 km at high resolution, and download it: a .usdz 3D model for iPhone that opens in AR, an .html page that works on any phone without a connection, with the names of lifts, pistes and peaks and your own position from the phone's GPS, a .glb for 3D software and a .jpg map with a scale bar. The map itself needs a connection; the downloads do not, so the 3D map of the area you ride is in your pocket.

The HTML export of the Grand Combin de Grafeneire, 3 by 3 km, opened in a browser: a 3D block with glacier, rock faces and a drawn route
The .html export of the Grand Combin de Grafeneire (3 × 3 km), opened in a browser without a connection: one file of 13.6 MB with the 3D block, the map and the slope, aspect and elevation layers as buttons. Exported 14 Oct 2026; terrain and imagery © swisstopo.

What you get

One area, four files. Pick the ones you need.

FileOpens inUse it for
.usdziPhone and iPad (Quick Look), including augmented realityPut the terrain on the table in front of you and walk around it, or show the line to the group in the hut.
.htmlAny phone or laptop browser, no connection neededThe area as a 3D view you can carry with you when there is no signal, with the names of lifts, pistes, peaks, villages and huts, and your own position on it from the phone's GPS.
.glb3D apps (Blender and others)Your own renders, prints or a 3D print of the area.
.jpgAny image viewer, printableA map of the area with a scale bar for your pocket.

On the mountain

Phone signal is patchy in the Alps and often gone in side valleys and on north faces. Download the area the evening before, when you plan: the .usdz for the viewer built into an iPhone, the HTML page for any other phone. On the day, your watch or GPS app navigates; the download is for looking at the shape of a face when you want to check a line. The HTML page can put your own position on the block: tap the location button and it uses the phone's GPS, which works without a signal, and says how far away you are when you are outside the area.

The downloads are a snapshot of the terrain and your routes. The avalanche bulletin changes every day, so read it again in the morning on the map or on the bulletin pages.

Augmented reality on iPhone

The .usdz file is Apple's format for 3D objects. Open it on an iPhone or iPad and Quick Look shows the terrain as an object you can place on a table or the floor and look at from all sides. It is the quickest way to show a group where a line goes.

What it doesn't show

  • BEYOND is not an offline app. The map needs a connection; only the downloaded files work without one.
  • An area is at most 16 × 16 km at medium resolution and 6 × 6 km at high resolution. For a long tour, download more than one.
  • The files are a snapshot. Avalanche danger, snow and weather change daily and are not part of a download.
  • The HTML page and the 3D models are for looking at the terrain. The HTML page shows where you are, but it is not a navigation app; on the mountain, use a watch or a GPS app to navigate.

Questions

Is BEYOND an offline app?

No. The map runs in the browser and needs a connection. What works offline are the files you download for an area of up to 16 × 16 km (6 × 6 km at high resolution): a 3D model for iPhone or 3D apps, an HTML page for any phone and a map image.

What is a .usdz file?

Apple's format for 3D objects. On an iPhone or iPad it opens in Quick Look, which can place the terrain in front of you in augmented reality. No app is needed.

Does it open on my phone?

Yes. The .usdz opens on an iPhone in the 3D viewer built into iOS, with AR; the .html page opens on any phone, Android included; the .glb is for 3D apps. None of them needs a connection once downloaded.

Does the HTML page show where I am?

Yes. Tap the location button and the page puts your position on the 3D block, from your phone's GPS; that works without a connection. When you are outside the area, it says how many kilometres away you are. The page also names the lifts, pistes, peaks, villages and huts in the area.

How large an area can I download?

Up to 16 × 16 km per download at medium resolution, and up to 6 × 6 km at high resolution. Draw the area on the map, then pick the files you want.