Choum (pronounced shoom) is a tiny railway halt in the Adrar Region of Northern Mauritania 5 km (3 mi) from the straight-line demarcated border with the Western Sahara that runs due west-east at this point before turning south-north 12 km to the east.
The whole area allegedly has a population of 5,000 but this is by no means obvious from the sparse and shabby development of 50 or so wooden shacks.
Choum has a passenger boarding opportunity for the iron ore train to the port of Nouadhibou. These ore trains are reputedly some of the heaviest (c. 20,000 t) and longest in the world at 3 km and bring iron ore from the many haematite mines around Zouérat the 700 odd kilometres to the coast.
Straddling what was once a major camel train route across the Sahara, the settlement has declined as this trade declined. It didn't help that, in 1977, it was attacked by French troops who suspected that it was supporting the Polisario Front, a national liberation movement that has fought for decades to free the Western Sahara from (successively) French, Spanish, Moroccan and Mauritanian rule.
There is no road or airstrip so unless you're wealthy enough to charter a helicopter, got your own camel train or are an off-course participant in the Paris-Dakar rally, your usual options are
The "SNIM" (Société Nationale Industrielle et Minière) iron ore train typically departs from Nouadhibou some time between 14:30 (the official departure time) and 22:00, depending on when they've finished loading freight such as mining machinery and pallets of food and beverages into the empty ore bucket cars. There is only one train a day with a "passenger carriage" tacked on right at the end and tickets can be arranged in advance or bought at the Nouadhibou train station (gare voyageurs) for around 2,500 ouguiyas (c. US$9 in Jul 2013). The small, concrete, whitewashed station is a desolate affair isolated in the desert, but before the train is due, locals will probably show up on mules to flog you supplies. If you can't find the ticket seller because the train is late, he may be drinking tea in the police post on the other side of the street. If you get too bored, you may want to walk 10 min to see the ship graveyard where about 150 ships have been abandoned to fraudulently claim the "total loss" insurance.
When the train finally arrives you can either choose to engage in (hopefully) unarmed combat with the locals to board and grab a prime place on the floor or amble on at your leisure later and then elbow a space for yourself with those you think are by then too worn out or wounded to protest too much.
Theoretically, if you pay an additional 1,000 ouguiyas you'll get a First Class ticket and be guaranteed a seat. (The windows will still be stuck open at various angles, so you'll still be coated with black dust, both from the desert and the empty ore buckets further forward).
If you've got a vehicle, it's possible to make arrangements in advance to load it on a flat bed carriage where the train starts from 3 km to the south (rather than at the station). Then you can sit in it with the windows closed and, if you have air conditioning, the engine running in real first class luxury for the whole 12 hours or so!
Travel in the ore bucket cars is free - just climb aboard - where it will be even hotter and dustier than in the "passenger carriage". The 460 km journey to Choum typically takes about 12 hr, so you'll scorch during the afternoon and then shiver after the sun goes down. Goggles would be a good idea because of the dust. Although the train doesn't go very fast, the desert winds can be both strong and persistent. As in the rest of the Maghreb, a torch is handy, since there is usually no electric power or lights in the "passenger carriage". A large, heavy duty plastic bag (such as the ones Air New Zealand or Virgin Atlantic supplies for pushchairs/babybuggies) to seal your luggage in against the dust would be a great idea!
Your train will probably stop half a dozen times before you reach Choum to let trains pass going the other way and to offload freight sporadically. Lot's of your fellow passengers will get off each time to pray. This is your chance to go to the toilet and stretch your legs. Men may want to squat or kneel before they urinate directly into the sand so the unpredictable and ever-changing direction of the wind does not give them or others a golden shower. Take your luggage and water with you each time though, in case you can't get back on the train fast enough or slip when boarding.
From Atar c. 150 km to the South for c. 2,500 ouguiyas plus around 200 ouguiyas for each item of baggage.
This is scorching and dusty grey-yellow-pink desert with very little to see, although some small-scale trenches, berms and firing positions are left over from the fighting with the Polisario Front.
very little, other than catch the train.
coke and camping gaz from a few very small grocery shops.
flies, since the Restaurant de l’amitie is a bumpy 4 hr 4x4 drive away in Atar.
Camel meat with onions and couscous or rice may be about the only thing available in Choum apart from the ubiquitous La vache qui rit (laughing cow) processed cheese (obviously in semi-liquid form in the heat) so you might want to bring some vitamin pills.
a lot! Temperatures during the day are above 40°C in July and August and sometimes top 46°C. You may not realise you are sweating a lot in the shade, since the air is very dry and your sweat usually evaporates before you see it, but you will need to drink about 4 litres a day. It's chilly at night under the clear desert sky, so pack your woollies.
in your sleeping bag. Bring a sleeping mat because there are a lot of small, sharp stones on the ground.
on the ore train to
by truck or Toyota Hilux on dirt tracks to the N1, 5 km to the East or South and then to