Les Larris de ST Aubin Rivière Eau

Galets

Plage

Balisage Continuité d'itinéraire Mauvaise direction Changement de direction

Towards 0 125 250 375 500 m Cultures

Towards Sénarpont Boisements F C o h r a m l e k r -b t a e n r k ra s c e s Fond de vallée humide

Water

Le Liger Towards / Lioner Wooded areas Chalk-banks Prairies Village

Starting point Go down to the right by Be careful: Fourrés After the bridge, take the track following the trail and cross The trail is for pedestrians only. the stile that goes to the right just after Closed during the hunting period (displayed at Teissedre © B. the farm At the junction of tracks turn entrance). Be careful not to trespass, the walk to the right is situated close to private properties. Do not Starting at: At the Parking approach the edges of the quarry. Keep dogs on exit of the village of leads when walking on the chalk-banks during Roselière possible at the exit of the Walk down the left turning The Chalk-banks of Saint-Aubin-Rivière, on grazing periods. village in the direction of the Andainville Road: Andainville Turn right to return to the Protect the natural environment the track to the right parking area Saint-Aubin-Rivière At the panel, take the little To help with the conservation of the rich after the farm. trail which climbs through natural habitats of this fragile site, please: Montagne the woods View Point . Always use the marked trails Saint-Aubin-Rivière, Visit the south-west of the , . Keep gates and stiles closed in the Liger Valley, for an amazing change of Turn right at the junction 33km from , Time: 30 mins Information point . Respect the fauna and flora 14km from Oisement scenery during a walk in a Mediterranean- of tracks . Take your litter away with you and picnic area like environment, as you explore the . Always keep dogs on leads Cross the stile to join the chalk-banks of Saint-Aubin-Rivière. Distance: 1.6km chalk-banks This trail is maintained by the Communauté de Communes de la Région d’ Route: moderate

Sign posts Route continues Wrong direction Change of direction For more information: • Tourist Offices: Pelouse graveleuse Poix-de-Picardie : 03 22 41 06 05 Abbeville : 03 22 29 34 07 Spring 0 125 250 375 500 m • Somme Tourist Board: Péronne This leaflet was created by www.somme-tourisme.com Oisemont Summer the Somme County Council www.somme-nature.com Saint-Aubin-Rivière 43, rue de la République - 80026 Amiens cedex 1 Autumn Pelouse rase 03 22 71 80 80 www.somme.fr Winter Managers of the site: Walk

Exploring the natural sites

Summer 2012 Summer Updates and printing: imp. Cg80 - Translation: C. Carnel - - Carnel C. Translation: - Cg80 imp. printing: and Updates Written by: Nathalie Saillard - Design: L’Agence par A Propos Propos A par L’Agence Design: - Saillard Nathalie by: Written 10 Dune boisée Dune arbustive

Dune blanche

Larris

Mollières

Bas champs © B. Teissedre Teissedre © B. The chalk-banks of This fine state of conservation left. It is interesting to think Saint-Aubin-Rivière is explained by the presence of that 60 years ago the wooded Nothing more resembles a chalk-bank than another chalk-bank… however, even if the area is rabbits who contribute to the area was an arid chalk-bank. At Saint-Aubin-Rivière the whole maintenance of this part of the community is mobilised in the the same, the environment is different. Here in the Liger Valley, the hillsides of the Saint-Aubin- With the area no longer used maintenance of the site, which is site. Insects also thrive here and Rivière, managed by the Conservatoire d’Espaces Naturels de Picardie, are dominated by hedge- for grazing and because of a managed by the Conservatoire you will find many butterflies, lack of maintenance work, the d’Espaces Naturels de Picardie. rows, pastures and agricultural land; with the forests of Argüel and Limer in the background. A spiders, bumblebees, honey woods have gained more and rich and remarkable fauna and flora - including many orchids - flourish on the chalky hillsides. bees, crickets and grass-hoppers. more ground. The starting point for this Dominique walk is situated along the road Panoramic views After this stop, take the steep Lefèvre At the large pine tree you will trail down to the stile where Volunteer warden between Saint-Aubin-Rivière of the site and Andainville, just after the have reached the first view you can retrace your steps. Pass “Every year, high bridge across the Liger. Follow point over the village of Saint- by the enclosure to a fork in school students the trail that starts on the Aubin-Rivière. The second is the path to the right. You will from Beaucamps- situated close to the edge of reach the former cultivated right just past the farm (water- Teissedre © B. © B. Teissedre © B. le-Vieux take part mill). The trail weaves its way the ledge; from here, you can terraces, once used to cultivate in a maintenance program. Children are upwards, sheltered by maple look across the Liger Valley. vegetables. At the end take the Apart from the efficient work carried naturally very interested in all aspects Opposite, you can see fertile “Pierre” track until you have out by volunteers as part of the of the environment, but they initially and beech trees. maintenance program, sheep - and need an adult to help them. Afterwards In the springtime, bunches agricultural land and below, returned to the starting point. their healthy appetites - also play © J.-L. Hercent/CEN Picardie © J.-L. it’s the children who ask to come back! of yellow Laburnum flowers pasturelands with woods to the their part in maintaining the area. I’ve seen children return with their Late Spider Orchid: Well adapted to the difficult The Conservatoire d’Espaces Naturels announce the proximity of the living conditions on the dry, chalky slopes. The parents, explaining to them the charac- de Picardie has been able to chalk-banks and when you chalk-banks host a pretty palette of colours with the teristics of the fauna and the flora!” browns and pinks of the Late Spider Orchid flowers. re-establish pasturelands thanks to a meet the first juniper trees you partnership with a local sheep farmer will have arrived. Conifer trees Discover those who inhabit About the site who has since been bringing his cover the hillside. On the the area flock to the site to help maintain the > Proprietor: Municipality of carpets of short grass, the A little further up you will be fauna and flora. Specific maintenance Saint-Aubin-Rivière yellow flowered Horseshoe on the most remarkable part of programs are organised to clear the > Size: 14ha Vetch and the Blue Globularia the chalk-bank. Vegetation is juniper thickets and allow sunlight to > Managed by: Conservatoire d’Espaces filter down. Naturels de Picardie attract many butterflies. less dense here and less invaded > Maintenance partners: A little further along, you will by bushes; this is where you Municipality, a sheep farmer, hunters, have access to an enclosure will find the Pasque Flower, Collège Beaucamps-le-Vieux where sheep graze. Creeping Thyme and a number > Financial partners: Europe, State, of different orchids, including Regional Council of Picardie, Somme the Late Spider Orchid. Teissedre © B. County Council