APPEVA Voie Étroite

The APPEVA keeps a piece of First World War military field railway running in the Somme valley. 600 millimetre gauge, open wagons, a ramp from the valley up to the plateau – and one of France's largest field railway collections in the depot at Froissy.

Also known as: APPEVA · P'tit Train de la Haute Somme · Chemin de Fer Touristique de la Haute Somme · CFTHS

FranceFranceHeritage railways9 min read

600 mm

Gauge

Froissy

Starting station and museum

1916

Field railways on the Somme front

Association

Organisational form, run by volunteers

Key takeaways

  • 600 millimetre gauge determines everything: vehicle size, speed, curve radii and so your choice of lens too.
  • The railway is a legacy of war. Without the Somme's supply field railways this line would not exist.
  • It's run by an association, not a transport company – operation depends on volunteer staff.
  • Museum and running line belong together: the depot at Froissy is the real focus of the collection.
  • Plan around the season, not the day. Running days are limited, and which vehicles are in use is hard to predict.
Contents
  1. 1.Fact file
  2. 2.Business areas
  3. 3.Structure & brands
  4. 4.History at a glance
  5. 5.How to recognise the company
  6. 6.Strengths and weaknesses
  7. 7.A legacy of war that happened to survive
  8. 8.What 600 millimetres means in operation
  9. 9.Route, season and what you can realistically expect
  10. 10.What stands in the depot and in front of the train
  11. 11.Photographing a field railway
  12. 12.The association behind the operation
  13. 13.Verdict
  14. 14.Frequently asked questions

Fact file

Legal formAssociation loi 1901 – a non-profit association under French law
Gauge600 mm – the classic field railway gauge
RegionSomme valley in Hauts-de-France, east of Amiens
Starting pointFroissy, also home to the depot and field railway museum
Type of operationSteam and diesel in rotation, mostly open passenger wagons
Historical originSupply field railways of the Somme front, later sugar beet traffic
StaffVoluntary – footplate crew, workshop and supervision are all association members
SeasonSummer half-year, mainly on Sundays and public holidays
Official websiteperso.club-internet.fr/appeva

Business areas

Heritage services – seasonal trains on the 600 mm line between the Somme valley and the plateau
Vehicle collection – field railway locomotives and wagons from military, industrial and agricultural service
Museum operation – depot and exhibition in Froissy as a fixed part of any visit
Preservation and workshop – restoration of small locomotives and wagons carried out in-house
Remembrance work – conveying the role the field railway played in the First World War

Structure & brands

Chemin de Fer Touristique de la Haute Somme – the name under which the passenger service operates
Froissy field railway exhibition – the collection at the depot by the starting station

History at a glance

1916During the fighting on the Somme, a dense network of 600 mm field railways springs up in the valley. They carry ammunition, building material and the wounded to places roads have long since become impassable.
1918After the war ends, large quantities of field railway equipment remain in the region. Part of the track continues to be used for civilian purposes.
Inter-war yearsThe narrow gauge line carries sugar beet between the valley floor and the plateau – the reason the remaining stretch survives at all.
1970sRailway enthusiasts found APPEVA and start running tourist trains on the surviving section.
1990sThe depot at Froissy grows into a field railway museum with one of the most extensive collections of its kind in France.
TodaySeasonal operation in the summer half-year, run by volunteer staff, with steam and diesel in rotation.

How to recognise APPEVA Voie Étroite

Does the train really belong to APPEVA Voie Étroite?

Tick off everything that applies to the vehicle in front of you.

  • 600 mm gauge – next to standard gauge the track looks almost like a toy, with the sleepers set close together
  • Open passenger wagons – low bodies without windows, often with a tarpaulin instead of a fixed roof
  • Small boilers – the steam locomotives are two- or three-axle tank engines, not main-line machines
  • Tight curves and a steep gradient – the ramp out of the valley is part of the route's character, not just scenery
  • Military origin – many wagons visibly come from supply and industrial service
  • Froissy depot – vehicles stand packed close together, many of them not operational

Strengths and weaknesses

What the company stands for

  • Field railway operation on this scale has become rare in western Europe
  • Museum and running line share the same site – one visit covers both
  • Slow trains and tight curves allow shots that are impossible on standard gauge lines
  • The historical context makes the railway accessible even without an interest in technology
  • The Somme valley floor is scenically varied and easy to reach

Where it falls short

  • The line is short – a whole day of photography can't be filled by it alone
  • Running days are concentrated on weekends in the summer half-year, so spontaneous visits often come to nothing
  • Which locomotive runs is rarely known in advance
  • Public transport to the region is awkward, a car is practically essential
  • Online information is thin and sometimes out of date

Updated: August 2026 – The first time you stand next to a 600 mm track, you underestimate it. The rails look dainty, the wagons low, the locomotive barely bigger than a small car. And then that same machine hauls a full train up a ramp out of the Somme valley. APPEVA Voie Étroite keeps exactly this technology running – a legacy of the military field railways that carried supplies here in 1916.

Log field railway vehicles properly

Locomotive, wagon, place and date recorded in seconds – especially useful on narrow gauge, where hardly anyone keeps lists.

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A legacy of war that happened to survive

The Somme was one of the main battle sectors of the Western Front in 1916. Roads across the shelled ground became unusable within days, so both sides laid field railways: 600 millimetre gauge, prefabricated track panels, small locomotives. After 1918 part of this remained in place and continued to be used for civilian purposes, above all for sugar beet.

That is exactly why this line still exists. It wasn’t superfluous after the war but useful – and so it was still there when railway enthusiasts founded APPEVA in the 1970s. A remnant of the route didn’t have to be recovered from scratch.

600 mmGauge – the field railway standard of the First World War
1916Somme front: field railways carry the supplies
FroissyStarting point with depot and museum
AssociationOrganisational form, run by volunteers

What 600 millimetres means in operation

Gauge is not a footnote, it is the frame for everything else. At 600 mm, curve radii are possible that would be unthinkable on standard gauge – in return, top speed and vehicle width stay tightly limited. The wagons are open or semi-open, because a closed body would make the vehicle too top-heavy.

Feature Field railway 600 mm Metre gauge 1000 mm Standard gauge 1435 mm
Typical locomotive size two- or three-axle tank engine four- to six-axle full main-line machine
Curve radii very tight tight wide
Travel speed walking to cycling pace moderate unrestricted
Wagon body open, low closed possible full-size
Typical use military, industrial, agricultural mountain branch line main network

For comparison it’s worth looking at the Brohltal Railway on metre gauge, or the Waldeisenbahn Muskau, which like APPEVA runs at 600 mm.

Bring a shorter lens than usual

On standard gauge you often work with 100 to 200 mm. On a field railway you inevitably stand closer to the train, and the train is smaller. A standard zoom covers more here than a telephoto – and for the tight ramp you need wide angle anyway, otherwise the train won't fit in the frame around the curve.

Route, season and what you can realistically expect

The line connects the valley floor at Froissy with the plateau towards Dompierre-Becquincourt. The height profile is the real character of the railway: the ramp out of the valley is steep enough that the locomotive works audibly. If you only know level lines, you notice the difference immediately.

Trains run in the summer half-year, mainly on Sundays and public holidays. We deliberately don’t give specific departure times here – they change every season and are currently only listed on the association’s website. What you can rely on is the pattern: several round trips per running day, a stop at the upper end of the line, return to the same starting point.

Check the season, not the day

Running days are limited. Before planning your trip, find out in which window trains run at all, and set your date within it.

Build in the depot

The museum at Froissy is not an afterthought. A large part of the collection stands there and never runs – for documentation it's the richest spot.

Ride the first round trip

This is how you get to know the route's profile and see where public paths come close enough.

Work the second round trip from outside

Now you know where the train slows and how long it takes. This is the round trip where the pictures happen.

Note vehicles while they're standing

Field railway vehicles are poorly documented. What you write down in the depot you often won't find anywhere else later.

How much time do you need in Froissy?

Enter your plans – the calculator estimates how long you should stay.

The running time is a guideline – check it on site against the timetable board.

What stands in the depot and in front of the train

Operational are small steam locomotives in field railway format: two- or three-axle tank engines with a low boiler and an open or semi-open cab. Alongside these are field railway diesel locomotives of the kind standard for decades in industry, brickworks and peat operations. We don’t name specific locomotive numbers – the operational fleet changes.

The depot holds considerably more than ever runs at once: wagons from military and industrial service, tipper wagons, small locomotives in varying states of preservation. If you’re interested in field railway technology, you’ll find more substance here than on the line. You’ll know a similar situation from the Frankfurt Field Railway Museum.

Collect narrow gauge systematically

Field railway, metre gauge, 750 mm – Traintrack keeps track of your visits.

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Photographing a field railway

Heritage railways are friendlier to photographers than the main network, and field railways are even more so: slow trains, a timetable that repeats, and the chance to work the same spot several times.

Good conditions when …

  • you catch a running day with several round trips
  • a public path runs alongside the ramp
  • steam is in use and the air stays cool enough for visible exhaust

Check in advance when …

  • you want to plan around a special working with a photo stop
  • you'd like to photograph in the depot – that's operational railway land
  • the timetable only provides a single round trip

Don't do this

  • step onto the track or trackbed, even with a stationary train
  • climb past barriers into the depot or workshop
  • approach or distract volunteers during shunting

Many heritage railways run organised photo stops during special workings, where the train halts at an agreed spot for photographs or runs past several times. Whether APPEVA offers such trips varies from season to season – how to find such dates at all is covered in Finding special workings. For shutter technique with slow trains, Shutter speed and panning helps.

Track bed and depot are operational railway land

The low speed tempts you to think of the tracks as harmless. They aren't: field railway trains brake poorly, and shunting happens in the depot without warning. Stay on public paths and in the open museum area. What the law says is summarised in Trespassing on the track.

The association behind the operation

APPEVA is an association loi 1901 – the French equivalent of a registered association. That shapes the operation more than any technical figure: footplate crew, workshop, track maintenance and supervision are all volunteers. Running days are therefore limited, and a faulty boiler can change an entire season.

You’ll find the same structure at almost every heritage railway in Europe, from the DEV Heritage Railway Bruchhausen-Vilsen to the Train Touristique Thur Doller in Alsace. If you want to get involved yourself, you’ll find ways in through the article Railway associations. Heavy boiler work is given by French associations too to specialised workshops – in the German-speaking world the Meiningen Steam Locomotive Works is the best-known address for that.

Verdict

APPEVA isn’t a railway for a quick haul. The line is short, the running days are few. Its value lies elsewhere: it shows technology in operation that otherwise only survives in display cases – and at the very place where that technology was historically needed.

For planning that means: clarify the season, factor in the depot, allow for two round trips. Travel there like that and you’ll come away with images unlike anything standard gauge produces.

In short

A 600 mm field railway with a genuine wartime legacy and a collection bigger than the running operation. Short line, limited season – but images that are hard to find in this form anywhere else.

Record what nobody else notes down

There are no central lists for field railways. Your own records are the source.

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Summary

  • APPEVA doesn't run a scaled-down railway, but the genuine technology of a field railway – just in 600 millimetres.
  • The appeal lies in the combination of the route's profile, open wagons and a collection that goes far beyond the operational vehicles.
  • Photographers gain more here from low speed and short distances than from expensive gear.
  • The limiting factor isn't the railway but the calendar: without checking the season you'll find the gates shut.

Frequently asked questions

What gauge is APPEVA's field railway?

600 millimetres. That is the classic field railway gauge used for supply lines on every front in the First World War. For comparison: standard gauge measures 1,435 mm, and the German narrow gauge lines in the Harz run at 1,000 mm. You can see how much this shapes vehicle design straight away from the height of the wagons – you can't stand upright inside them.

Where do the trains start?

The starting point is Froissy in the Somme valley, east of Amiens. The depot and museum are there too, and form part of the visit. From there the line climbs to the plateau towards Dompierre-Becquincourt. There is no connection to the SNCF network at this point.

Is it steam or diesel here?

Both. APPEVA runs small tank steam locomotives and field railway diesels, depending on the running day and the vehicles' condition. Which engine is in front of the train on which day is rarely announced in advance. If you want to photograph steam specifically, check this before you travel – the basics are covered in the guide Photographing steam trains.

How long does a visit take?

Allow half a day. The ride itself is short, but the depot at Froissy takes considerably longer than the line. If you also want to take photographs, plan for at least two round trips so you can work a location once from the train and once from outside.

Is APPEVA an association or a company?

An association under French law (association loi 1901). That's not a formality: footplate crew, workshop, ticket sales and track maintenance are all in the hands of volunteers. Almost everything practical follows from that – limited running days, changing vehicle rosters and an operation that rests over winter.

What does the railway have to do with the First World War?

A great deal. The Somme was one of the main battle sectors in 1916, and all supplies ran on 600 mm field railways, because roads across the shelled ground were no longer passable. Today's heritage line uses the remains of that infrastructure. The museum at Froissy puts exactly this connection at its centre.

Are there comparable field railways in Germany?

Yes, several. The Frankfurt Field Railway Museum and the Historic Field Railway Dresden use the same gauge. The Waldeisenbahn Muskau and the Stumpfwaldbahn Ramsen also run at 600 mm. If you want to collect field railway technology systematically, that gives you a route.

Can I follow the line on foot?

Only where public paths run alongside it. The track bed itself is operational railway land and off-limits, even though the train runs slowly and the rails look harmless. Which distances apply, and why they apply even on narrow gauge, is covered in Safe distance from the track.

When is the best time for photographs?

In the Somme valley the line runs partly through cuttings and vegetation, so a high sun is often unhelpful. Late afternoon on the plateau usually gives the better light. How to plan this in advance is explained in Planning sun position at a photo spot.

Is there reliable information on route length and fleet?

Only to a limited extent. Published figures for route length, the number of operational locomotives and the timetable vary by source and season. We deliberately don't give a figure here that would be wrong next year. Gauge, starting point and organisational form are reliable – check everything else on the association's website before you travel.

Log vehicles from APPEVA Voie Étroite

Company, vehicle, location and date logged in seconds – and visible to the community.

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The operational level in the railway operator database

Who actually runs the trains, with keeper markings and identifying features on the vehicle.

Typical vehicles

Where you will find APPEVA Voie Étroite

Spotting locations where you will regularly come across vehicles from this organisation – with viewpoints, the best light and coordinates.

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Traintrack editorial team

This database covers the company and brand level of the railway. Group structures, shareholdings and transport contracts change all the time – confirmed details are in the fact file, and anything subject to change is marked as such. Who actually runs the trains is covered in the railway operator database.

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