Upper Mustang-Phu Valley Traverse Via Saribung La:  Day 11 – Damodar Kunda To The Japanese Base Camp

Last revised on October 26, 2022.

Previous Post: Day 10 – Batsyak Camp (Parsye Khola) To Damodar Kunda

  • Time:  7:20 start – 10:30 finish
  • Distance: about 5.5 km.
  • Maps: Himalayan Map House Upper Mustang Trek Map.  
  • Nepal Govt 1:50000 topo maps: 2984 13 Damodar Kunda;   2884 01 Damodar Himal.
  • Route: from Damodar Kunda on the north side of the Namta Khola to the Japanese Base Camp on what once was the bottom of the Khumjungar Glacier (it has receded about 700 meters)

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On the day’s “to-do” list was an easy 5.5-kilometre walk on a clearly defined trail along the north slope of the Namta Khola, following it all the way to the toe of Khumjungar Glacier. Located there – about 260 meters higher in altitude – is a campsite known as the Japanese Base Camp, presumably because a Japanese climbing expedition used it as a base camp for their ascent of one of the nearby peaks.

a look back – the trail from Damodar Kunda – with borders provided by Yara villagers

We set off around 7:15  and, as the images show, it was more of the sunny weather we had for most of the trip. About a half-hour later, I stopped on the trail to take the photos you see above and below. First, I looked back at some of the approaching porters and a couple of my fellow trekkers. Visible in the image is the row of small boulders.   I figured it was the work of the Dhi and Yara villagers keen on developing the trekking route through their district.

Then I looked up the trail with more porters and trekkers. The snowy peaks would increasingly dominate our views for the next three days – we were now in the mountaineering phase of our trip! The trip notes had even recommended mountaineering boots and crampons as essential for at least the crossing of the Saribung La a couple of days later.

looking up the trail along the Namta Khola

We passed by a large rock cairn, and down below, we saw a herder’s corral. Besides the retreating climbing party at Ghuma Thanti, we had seen no one since leaving Luri Gompa. No herders, no pilgrims, no trekkers.  Perhaps things get a bit busier later in the season?

the trail to the Khumjungar Glacier Japanese Base Camp

Two porters can be seen on the patch of snow in the bottom third of the image below. They would continue over the upcoming ridge, then head down to the Namta Khola river bed and around the corner towards our campsite to the south.

our porters up ahead approaching the bend in the Namta Khola

It was late April, and the river was a mere trickle with parts of it frozen. It would look different in August or September, with a summer’s worth of glacial melt streaming down. Then trekkers may have to do some wading to get across; we would not have to do any of this.

the Namta Khola near its beginnings at the receding toe of Khumjungar Glacier

rounding the corner of Namta Khola for Japanese Base Camp

Two hours into the morning’s walk – and perhaps a half-hour from our campsite, the spot below became a gathering spot for five of our ten porters. Approaching them is the sirdar, the one responsible for organizing them each morning. Behind them is our trip leader with a couple of my fellow trekkers.

porters and trekkers at the top of Namta Khola on the way to Japanese Base Camp

the last stretch to Khumjungar Japanese Base Camp

taking a break at the top of Namta Khola just before Japanese Base Camp

By 10:00, we had reached the outskirts of the Japanese Base Camp on the Khumjungar moraine. I turned around to take a few more shots of the terrain we had just walked up. The one above has Rob taking a short rest; the one below also looks down the valley, but I’ve stepped back to include the prayer flags some trekking or climbing parties had set up during their stay.

the beginning of the Namta Khola below Khumjungar

A small garbage dump with rusted cans and a small collection of empty whisky bottles was not far from the prayer flags.

  • There are some peaks in the mid-5000s and Bhrikuti Shail (6361) on the Nepal/Tibet border a couple of kilometers to the east.
  • There are also Khumjungar (6759) and Chhib Himal (6650) and other possible climbing objectives to the south, including Saribung Peak (6328).

All would involve leaving Base Camp for a High Camp before the ascent. Hopefully, the whisky in those bottles was savoured in celebration!

a Japanese Base Camp garbage dump

Looking beyond the prayer flags, I could see that the cook tent was already up on the other side of the patch of snow. It is almost dead center in the image below.

Japanese Base Camp at the bottom of Khumjungar Glacier

our tent site by Japanese Base Camp on the Khumjungar moraine

The weather would turn overcast in the early afternoon, and we would get a flurry of snowflakes. We had ample time to go for a ramble up towards the glacier; the pix below all figure with bits of broken mountain and chunks of ice and snow.

a view of the Japanese Base Camp area and our tents  from higher up the moraine

blue Khumjungar ice – above Japanese Base Camp

Khumjungar ice and glacial puddle

looking up the glacier and wondering about the next day’s route to High Camp at 5700 m

looking back at the Japanese Base Camp from the south

View of Japanese Base Camp from the upside of the moraine

The Gamow Bag Comes Out:

What would we do if one of us had a severe case of altitude sickness, HACE (high-altitude cerebral edema), or HAPE (high-altitude pulmonary edema)? While the protocol is to lose altitude, given our route, the affected person would not be able to go down quickly enough.

For example, we were at 5250m at Japanese Base Camp; it would take four hours to get back to Damodar Kunda, which is less than 300 meters lower. Another six hours and we’d be back at the Batsyak Camp, but it is still at 4890m. And Ghuma Thanti? Another six hours and an altitude of 4750, only five hundred meters lower than our start point many hours – perhaps a couple of days – previously. This would not do.

Calling in a helicopter is the obvious answer in such a case, but doing so will not necessarily result in an immediate rescue. If you satellite phoned in the afternoon, for example, and it is unlikely that a helicopter would arrive until the following day, especially given our fairly remote location east of the Kali Gandaki. The afternoon winds also factor in.

internet-sourced image of a Gamow bag and foot pump

Our trek leaders would have to deal with just such an incident. At our Japanese Base Camp, one of our porters showed signs of HACE (High Altitude Cerebral Edema). Shortly after arriving at the campsite, he would collapse, lose consciousness,  and be revived. Soon he was placed inside a bag similar to one invented in 1990 by Igor Gamow of the University of Colorado.

Wikipedia has a nice simple explanation of how it works –

Gamow bag (pronounced Gam-Off) is an inflatable pressure bag large enough to accommodate a person inside. A patient can be placed inside the bag which is sealed and inflated with a foot pump. Within minutes, the effective altitude can be decreased by 1000 to as much as 3000 meters (3281 to 9743 feet) depending on the elevation. The bag is pressurized to 105-220 mm, pressure gradient is regulated by pop-off valves set to the target pressure.[1] It is primarily used for treating severe cases of altitude sickness,[2][3] high-altitude cerebral edema, and high-altitude pulmonary edema.[4]

We were told the porter felt better after a half-hour in the bag. Unclear, however, was for how long he would feel better and precisely what the plan was for the next day. Did the trip leaders think the porter could ascend another 400 meters to High Camp and then yet another 300 to Saribung La? Later that afternoon in my tent, I accessed my digital copy of the Lonely Planet Trekking in the Nepal Himalaya guidebook (2015) and read this –

Emergency treatments for serious symptoms of AMS include supplementary oxygen, nifedipine, dexamethasone and repressurisation using a device known as a Gamow bag (this should only be administered by health professionals), but these only reduce the symptoms and they are not a ‘cure’. They should never be used to avoid descent or to enable further ascent.  The only effective treatment for sufferers of severe AMS is to descend rapidly to a lower altitude.”

And that is what happened.

The following day, after the porter collapsed a second time, it was decided to call in a helicopter. (I am not sure about this -it is more likely that the decision to call had already been made before he collapsed.)  When we set off from the camp, the trek leader and another staff member stayed behind with the affected porter and a second porter with a knee problem.

We would hear a helicopter sometime later while we were making our slow ascent up the lateral moraine to High Camp. Word received at the end of the day informed us that the porter was recovering nicely and would be okay, as would the one with the knee injury. The incident brought home the potentially fatal consequences of rapid altitude gain, a problem no doubt compounded by the physical exertion needed to carry 30 kilograms’ worth of client and camp gear from one camp to another.

Random Thoughts Prompted By The Above:

Something I wonder about is this:  in this incident and in the one I described in this post (here), it is a porter and not a trekker/client who suffers from HAPE/HACE. In both cases, the clients seem to fare okay. To be clear, however, so do most of the porters! Given the 80,000 trekkers walking in the Himalayas each year, some stats on how many actually suffer from HAPE/HACE would be helpful. The Wiki article on HACE mentions that it hits 1%  of those who go up to 4000 meters, but in Nepal, you are often above that.

One explanation offered by the guide was that the night before, the porters had slept in the pilgrims’ shelter at Damodar Kunda, where a Hindu pilgrim had supposedly died the year before. Given the traditional Tamang worldview, the notion that some bad karma had been left behind would explain the cause of the porter’s misfortune.

four of our porters on the Phu side of Saribung La – note the loads

I never did pick up a porter’s load and try walking with it, but each of them was dealing with a load of at least 30 kilograms. Meanwhile, my pack weighed at most 10 kilograms. 30+ kg. is quite the workload, especially for those porters who were not much older than 16 and on their first trek.

It must also be said that there were older and experienced porters and the sirdar, who occasionally lightened the load of a flagging porter. Our entire crew was Tamang and had been hired by the sirdar.

From what I understand, the labour market in Nepal these days is such that there are other “easier” ways of making money –

  • post-earthquake reconstruction work
  • road construction projects.

Those jobs may be more attractive to unskilled and poorly educated male youth entering the labour market. Just how much does a trekking porter make a day? The guide did not confirm my estimate of 2000 rupees or about $20. US).

The Australian adventure travel company that organized my trek, World Expeditions, does have a page dedicated to porter welfare (see here). The Nepalese agency which ran the trek – Highland Excursions – provides its porters with clothing, boots, and everything else mentioned in the World Expeditions porter welfare page.

Next Post: Day 12 – Japanese Base Camp To Khumjungar High Camp

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