Green hills and a village overlooking the valley

Walk · Discover · Preserve

The trail is
only the beginning.

Plan your hike, discover wildlife and care for the places you walk through.

Create your account to plan and save routes. Find them again on iPhone with the same account.

Plan my route
A walk near home. A multi-day adventure.
01 Go further 02 Look differently 03 Protect the trails

CMATERRE on iPhone

Plan on the web.
Walk with the app.

Build your route on a large screen, choose each stage and find accommodation. Take your saved routes with you on iPhone.

  • Follow your route with off-course alerts.
  • View distance, elevation and the terrain profile.
  • Discover wildlife, report litter and spot ragweed.
iPhone app currently in testing

Public availability will be announced here.

Plan my route
CMATERRE iPhone home screen
Your starting point
Route tracking on iPhone
Your walking companion

Great adventures

Trails that make you
want to set off.

Compostela, Stevenson, Corsica… Find inspiration in these great routes, then build your journey with your own stages and accommodation.

Departures, arrivals, stops and accommodation: plan your multi-day hike on a large screen.

Plan my adventure

Routes presented by FFRandonnée / Mon GR®. Check the latest trail information before setting off.

The CMATERRE community

Your finest trails
are worth sharing.

Save your routes and share them with the community. Help others discover your favourite walks and find inspiration for your next outing.

Routes worth discovering

A walk close to home or several stages on a great trail: inspire others to follow in your footsteps.

A PDF trail book to share

Gather your hiking information in a PDF to send to your walking companions or print before departure.

Groups to walk together

Meet your companions in a group, chat together and share routes while planning your outing.

A real example

Auvillar to Aire-sur-l’Adour

Explore a trail book generated with CMATERRE: 6 stages on the GR65, with photos, maps, elevation profiles and accommodation.

View the PDF trail book — opens in a new tab

Example personalised trail book · 7 pages · 7 MB. Dates, prices and bookings belong to this example and do not indicate current availability.

CMATERRE recognition

Put a name
to an encounter.

A flower beside the trail, an insect on a leaf, a passing animal… A photo can be the start of a discovery.

In the iPhone app · currently in testing
01 / FLORA

Plants

Photograph a plant and receive an identification suggestion to learn more about it.

02 / SMALL WILDLIFE

Insects

Observe the trail’s smallest visitors with animal recognition, without disturbing them.

03 / WILDLIFE

Animals

Learn to recognise a wild encounter from a photo while keeping your distance.

04 / PUBLIC HEALTH

Ragweed

From an existing photo or one taken on site, CMATERRE indicates whether ragweed is likely and displays a confidence level.

How do I use recognition on iPhone?

In your CMATERRE test version, open “Identify a plant”, “Identify an animal” or “Detect ragweed”, then choose a clear photo or take a new one. Insects are included in animal observations.

For likely ragweed, check the photo, confidence level, GPS position and municipality before preparing the report.

Recognition is not yet available on this website. Public iPhone access depends on the app’s availability.

Identification is a suggestion, not a certainty. “Likely ragweed” is not expert confirmation. Never eat a plant based on this result alone. Do not touch animals or disclose the location of vulnerable species.

Responsible hiking

Nature’s
watchkeepers.

Enjoying the trails also means caring for them. With CMATERRE, everyone can help by reporting litter and likely ragweed encountered while walking.

Observe. Report. Preserve.

Talk to CMATERRE
STOP FLY-TIPPINGSTOP RAGWEED
  1. 01

    Observe safely

    Locate the litter or photograph the suspected plant. Do not handle dangerous objects or pull up an unconfirmed plant.

  2. 02

    Report from iPhone

    CMATERRE prepares the appropriate litter or ragweed report with the photo, GPS position and municipality.

  3. 03

    Help municipalities act

    The message is adapted to the report type and sent with the useful information to help the municipality take action.

Tracking on iPhone

Your progress,
at a glance.

Follow your route as you walk and use the essential markers to understand your progress.

Off-route alert

Turn on the alert and choose a distance from your route to be notified if you stray from it.

Distance and ascent/descent

See your distance travelled, total ascent and total descent during your outing.

Live elevation

View the elevation profile as it builds during your walk using GPS points that include altitude.

Tracking and alerts require location access and a sufficient GPS signal. They do not replace your own vigilance outdoors.

Before and during your walk

Everything you need
travels with you.

Accommodation and stops

Find places to stay and organise stops along your route.

Your trail book

Bring the practical information for your hike together in a PDF.

Back to the car

On iPhone, save your parking location so you can find your starting point again.

Your next departure

Got an idea for a walk?
Let’s turn it into a trail.