Umling La: Riding the Highest Road on Earth, and Why It Hurts

Five thousand seven hundred and ninety-eight metres, half the oxygen you were born with, and a strip of tarmac the Indian army built to a village on a disputed border. What riding the highest road on earth actually involves.

The number

Umling La sits at 5,798 metres. In feet that is 19,024, and the Border Roads Organisation put a sign up there saying so after Guinness confirmed it in 2021 as the highest motorable road in the world.

To put that in the only comparison that matters to most riders: Khardung La, the pass north of Leh that has been on every Himalayan bucket list for thirty years and which has a famous sign claiming 18,380 feet that is generously rounded, sits somewhere around 5,360 metres. Umling La is more than four hundred metres higher. Everest Base Camp on the Nepal side is about 5,364 metres, which means the road tops out above the place trekkers spend two weeks walking to.

You can ride a motorcycle to it. That is the whole proposition, and it is a strange one.

Why the road exists, which is not tourism

Nobody built this for riders. The road runs eighty-six kilometres and connects two settlements, Chisumle and Demchok, on the far southeastern edge of Ladakh, hard up against the line with Chinese-controlled territory.

It was built by the Border Roads Organisation, the branch of the Indian military engineering establishment that has been carving roads into the Himalaya since the sixties, under the umbrella of Project Himank. The purpose is strategic. Demchok sits in disputed territory and a country that can move vehicles to a place quickly has a very different set of options from one that cannot.

The construction itself is close to absurd. Working at those altitudes means every man on the job is operating on half the oxygen of sea level, machinery loses power the same way engines do, the working season is a few months long, and winter temperatures on that plateau drop toward minus forty. That a paved road exists up there at all is a piece of stubbornness that deserves more respect than the selfie it usually gets.

Getting there is most of the story

Umling La is not somewhere you drop into on the way to something else. It is a very long way from Leh, at the end of a chain of high country that has to be crossed in the right order.

The route runs south and east from Leh, out along the Indus, past the Tso Moriri and Hanle branches, into a landscape that stops looking like mountains and starts looking like a high desert plateau with mountains standing around the edge of it. Hanle itself is roughly two hundred and seventy-five kilometres from Leh, and the pass is another hundred-odd kilometres beyond that.

What you notice on that approach is the emptiness. Ladakh generally is empty. This corner is a different order of empty: enormous flat brown plains, occasional herds of pashmina goats with a nomad family somewhere behind them, and long stretches with no structure of any kind in view. The horizon is a very long way away and the sky is a colour that photographs never get right.

Hanle, and the darkest sky in India

The village you stage from is worth a paragraph of its own, because it is one of the more unexpected places in the Himalaya.

Hanle hosts the Indian Astronomical Observatory, one of the highest optical telescopes in the world, sitting on a hill at around forty-five hundred metres. It is there because the air above Hanle is exceptionally dry, exceptionally thin and exceptionally free of light pollution, which are precisely the three conditions astronomers spend their lives looking for.

In 2022 the area around it was designated a Dark Sky Reserve, the first in India, and the village has taken it seriously: shielded lighting, curtains, a local community trained to run telescopes for visitors. The practical result for a rider staying the night before the pass is that you step outside a homestay at ten at night, look up, and see the Milky Way as a structure with texture and depth rather than a smudge.

It is the best night sky most people will ever stand under, and it happens to be on the way to the highest road on earth. That is a good day’s work for a single village.

The permits, which are real

There is no specific permit for the pass itself, but you cannot get anywhere near it without an Inner Line Permit covering Hanle and the surrounding restricted areas.

These are issued in Leh, they are checked at posts along the way, and they are checked properly rather than waved through, because this is a live border region. The paperwork is not difficult. It is simply not optional, and it has to be arranged before you leave Leh rather than negotiated at a checkpoint at four in the afternoon.

The other thing that comes with a border region is that the pass is the end of the line. You go up, you stop, you come back. Continuing toward Demchok is not a tourist activity and the army takes a dim view of anybody attempting it.

What 5,798 metres does to a body

There is about half as much oxygen in each breath up there as there is at sea level. That is not a gradual inconvenience, it is a step change, and the effects arrive fast.

Getting off the bike leaves you breathing hard. Walking twenty metres uphill to a viewpoint feels like a flight of stairs taken at a run. Simple arithmetic gets difficult, which is the part that unnerves people: you will try to work out how much fuel you have left and lose track halfway through. Fine motor control degrades. Fingers get clumsy on a zip.

Headache is normal at that height and is not by itself a problem. Nausea is common. What is not normal, and what means you go down immediately, is confusion, slurred speech, a stumbling gait, or a cough with anything wet in it. Those are the signs of the two conditions that kill people at altitude, and at 5,798 metres you do not sit around debating them.

This is why the ten-minute rule exists. You are there for photographs and then you are leaving. Nobody eats lunch on Umling La, nobody has a nap, and anybody suggesting a longer stop has not understood where they are.

What it does to the motorcycle

Engines breathe air too, and they lose roughly the same proportion of it that you do.

A naturally aspirated engine at 5,800 metres is making somewhere around forty to fifty percent of its sea-level power. A bike that pulls happily in third at home will want second, then first. Overtaking stops being a thing you consider. Hills that would be nothing become a matter of momentum management.

The good news is that modern fuel injection copes with this by itself. It reads the air, adjusts the mixture and gets on with it. The old carburettor stories about rejetting for altitude, which every Himalayan account from twenty years ago is full of, are largely historical now; the bikes that work up there are injected and they simply run leaner and slower.

What has not changed is the cold-start problem. Overnight at four thousand metres in a place where the temperature drops hard, a bike can be genuinely reluctant in the morning, and the fix is patience rather than throttle. Battery performance falls off in cold, so anything marginal in the electrical system will pick that morning to reveal itself.

The cold, in August

Riders coming from Europe in July and August have a hard time believing this and then they believe it very suddenly.

The riding season in Ladakh is summer, and in the valleys it is warm, dry and bright. At the top of Umling La, on the same day, you can be at or below freezing with a wind coming across a plateau with nothing to slow it down. Add the wind chill of riding and the effective temperature drops further.

Mesh jackets are for Chiang Mai. What works up there is a proper layering system, a windproof outer shell that actually seals at the neck and wrists, and gloves that are warm rather than fashionable. Heated grips or heated gloves are not an indulgence at that altitude at seven in the morning; they are the difference between feeling the brake lever and not feeling it.

The sun compounds it. At that height the ultraviolet is savage and the air is dry enough to strip moisture out of you without you noticing. High-factor sun cream, lip balm and drinking considerably more water than you feel like are all part of not arriving at the pass in poor shape.

Is it really the highest?

Worth addressing, because the internet argues about it.

There are vehicle tracks higher than this, most famously on the flanks of Ojos del Salado in Chile, where modified vehicles have driven above six thousand metres. Those are tracks and expeditions rather than public roads. Umling La’s claim is specifically as a motorable road: a constructed, surfaced public highway that an ordinary vehicle can drive on.

There is also a second-order argument about the exact elevation, with the BRO sign and various surveys disagreeing by a hundred metres or so, and with the pass’s own signage having claimed a higher figure than the certified one. None of it changes the experience. Whether it is 5,798 or something slightly different, you are higher on a road than you can get anywhere else, and your body will inform you of this without needing a survey.

Why it comes on day twelve

Look at where this sits in a fifteen-day Himalayan itinerary and the sequencing is the whole safety strategy.

You fly to Leh, which is already at three thousand five hundred metres, and you spend the first day doing nothing at all. Then a short warm-up ride to the monasteries. Then progressively higher country: the western Indus valley, the Namika and Fotu passes, the Zanskar gorge, Khardung La into Nubra, the Siachen approach, Wari La, Pangong Tso. Each of those nights is spent higher than the one before, and each of those days puts your body under a bit more oxygen debt and then lets it recover.

By the time day twelve arrives you have had eleven days of acclimatisation and your blood chemistry has changed. Which is why a group riding Umling La on day twelve of a properly built route has a very different experience from a rider who flew into Leh on Tuesday and decided to bag the record on Friday. The second version is how people end up in the hospital in Leh, or worse.

There is no shortcut and there is no fitness level that substitutes for time. A marathon runner who arrives on Tuesday is in exactly the same trouble as anybody else.

The rest of the plateau, which deserves better than a footnote

Umling La gets the headline, and the country you cross to reach it is arguably the better part of the trip.

This corner of Ladakh is the Changthang, a high plateau that continues east into Tibet and that supports one of the most extreme pastoral cultures on earth. The Changpa are nomadic herders who overwinter at four and a half thousand metres and whose goats produce the undercoat that becomes pashmina. You will pass their camps: low black tents, stone corrals, dogs that take their job extremely seriously.

The wildlife is remarkable and almost nobody expects it. Kiang, the Tibetan wild ass, in herds on the open plain. Tibetan gazelle. Marmots that stand up beside the road like sentries. Black-necked cranes in the marshy areas in summer. Bar-headed geese, which migrate over the Himalaya at altitudes that should not be survivable.

And the lakes. Pangong Tso earlier in the route, which is the famous one and which is as blue as the photographs suggest. Tso Moriri afterwards, which is quieter, higher and in most riders’ opinion better, sitting at around four thousand five hundred metres with mountains on three sides and almost nobody there.

Ride the whole plateau and the pass becomes the punctuation rather than the sentence.

What to do if it goes wrong up there

Worth spelling out, because at that altitude the margin for a slow response is thin.

The single most effective treatment for altitude illness is descent. Not oxygen, not drugs, not rest. Going down. Five hundred metres of descent will do more in twenty minutes than anything else available, and the reason a properly run motorcycle tour keeps a support vehicle within reach on these days is precisely so that a rider can be put in it and driven downhill immediately rather than being asked whether they feel well enough to ride.

Supplementary oxygen buys time and it does not fix the problem. A pulse oximeter, the clip that goes on a fingertip, is a cheap and useful tool: readings below the mid-eighties at altitude mean the conversation is over and the keys are being handed across. Acetazolamide, taken preventively under medical advice, helps some people acclimatise and is not a licence to skip the schedule.

The other failure mode is mechanical, and the answer is the same vehicle. A bike that will not restart at 5,800 metres is not something to solve at 5,800 metres. It goes in the truck and gets looked at four hours later and a thousand metres lower, where the mechanic can think straight.

None of this is a reason to be nervous about the ride. It is a reason to do it with people who have the vehicle, the oximeter and the willingness to overrule a determined rider, which is a large part of what a big biking tour in this country is actually for.

The photograph, and what comes after

Everybody takes the same picture: bike, sign, rider, thin blue sky. It is a good photograph and you should absolutely take it.

What people talk about afterwards, though, tends not to be the sign. It is the twenty minutes on the climb before the top, when the road is running across a completely bare ochre and rust-coloured landscape with no vegetation of any kind, the engine is audibly struggling, and it becomes obvious that you are somewhere the human body was not designed to be. There is a particular quality of silence up there when you switch the engine off. Nothing grows, nothing moves and there is not enough air to carry sound properly.

That is the thing worth going for. The number is just the excuse.

Is it just a number?

Fair question, and worth answering honestly rather than defensively, because there is a version of this that is pure box-ticking.

If you flew into Leh, hired a bike, ran straight down to Hanle and back to bag the record, then yes, it would be a number. An expensive, uncomfortable and moderately dangerous number, collected at the cost of everything else Ladakh has.

What makes it worth doing is where it sits. Umling La is the far end of a plateau you have spent days crossing, at the end of a fortnight in which you have already ridden Khardung La into Nubra, looked at the Siachen approach, crossed Wari La, sat beside Pangong Tso and come through the Zanskar gorge. By the time you get there, the pass is not a stunt. It is the logical extreme of a landscape you have been getting to know, and the reason it means something is that you understand by then how hard it is for anything, including you, to exist up there.

The riders who get the least out of it are the ones who came for the sign. The ones who get the most are the ones who had almost forgotten the record existed and then found themselves at the top of it, on a guided tour that had spent eleven days quietly getting their blood ready, looking at a horizon that goes into Tibet.

That is the difference between collecting a place and riding to one.

Riding the high Himalaya for real

Umling La is day twelve of our fifteen-day Real Himalayan Ride, and everything before it is designed to get you there in a condition to enjoy it. Flight into Leh and a full acclimatisation day. Warm-up rides to Hemis and Thiksey. The western Indus valley and the Aryan villages, Namika La and Fotu La, the Zanskar gorge, Khardung La into the Nubra valley, the Siachen glacier road, Wari La, Pangong Tso, three passes back to the Indus, then Umling La, then a night camping at Tso Moriri.

Small group, road captain who has crossed these passes many times, mechanic and support vehicle, oxygen and a pulse oximeter in the truck, all permits arranged in Leh before departure, and a road captain with the authority to put a rider in the vehicle when the numbers say so. Have a look at the 15-day Real Himalayan Ride or the wider Himalayan motorbike tours page. The season is short, roughly June to September, so if the highest road on earth is on your list, message us on WhatsApp and we will tell you which departures are still open.