---
title: "ALTITUDE — Beyond the breathing line"
description: "Altitude — beyond the breathing line. An alpine ascent homepage."
lang: en
json-ld:
---

**ALTITUDE**AN EXPEDITION BEYOND THE ORDINARY 

Some journeys begin with a threshold. 

GATHERING LIGHT · PREPARING THE MOUNTAIN

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KARAKORAM / 8,611 METRES ABOVE THE ORDINARY SKIP INTRO

![A snow-covered alpine summit illuminated by warm sunrise, above clouds and a shadowed glacier valley.](assets/mountain-reconstruction.png)

# ALTITUDE

![](assets/mountain-reconstruction.png)

NORTH  
36°31′  
FIELD 01

BEYOND THE BREATHING LINE

8,611 M

NO AUDIO 

BEGIN 

BASE ALTITUDE

2,380 M

DISTANCE AHEAD

67.4 KM

the ascent

SCROLL INTO THE MOUNTAIN

EXPECTED TEMP

−42°C

OXYGEN AT SUMMIT

32%

RETURNALTITUDE _/_ KARAKORAM 

PAUSE CLOUDSSOURCES

Loading elevation and satellite imagery…

01 / 05 

## BALTORO

Dawn along the glacier

JOURNEY PROGRESS

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Illustrative aerial tour · not a climbing route

Copernicus Sentinel-2 · USGS / Mapzen

THE END OF THE ASCENT 

## K2 _·_ 8,611 metres

The whole journey, beneath you.

Scroll back to retrace the expedition

## The landscape behind the journey

Real elevation and satellite imagery. An authored aerial path, not a surveyed trekking or climbing route.

Contains modified Copernicus Sentinel data (2024). Terrain: Mapzen / Tilezen, global SRTM courtesy of the U.S. Geological Survey.

Regional terrain, approximately 60 m sampling; coarser on mobile. Sentinel-2 surface imagery, 23 September 2024. No photogrammetry or live weather.

The illustrated homepage dissolves into geographic terrain; it is not an exact camera match. Homepage field-note figures are retained concept artwork, not expedition guidance.

[Full sources and limitations](SOURCES.md)CLOSE