The belvederes and the peat bog of Nanchez - Prénovel

Perched 971 m high-up on the Bois de la Joux anticline, this belvedere overlooks the Anchey Combe (or the Prénovel-Les-Piards combe). According to geologists, this combe is a real combe, dug into the mountain by erosion. The mildness of the slopes is the result of the glaciers having deposited moraines. This combe is now used for hay fields.

The Nanchez forebay (or the Anchey forebay), which winds along the foot of the belvedere, has once more joined its meanderings since 2016, slowing flood flows and benefitting biodiversity and the rivers downstream.

Peat bogs are characterised by a surface that is constantly water-logged, where peat forms and accumulates: it is a type of bedding made-up of dead vegetation which has badly decomposed due to the absence of oxygen. Life conditions are demanding in these environments and this means that the species that live here must adapt to the omnipresence of water, to a relatively cold climate and to the chemical composition of the soil.

This small carnivorous plant traps insects using its sticky digestive-juice covered hair. This adjustment allows the plant to acquire additional nutrients in this environment where its roots struggle to find enough food.

This phony blueberry favours environments that are slightly acidic, which is why it can be found in raised bogs or bogs that are in the process of drying out. Its edible berries, which mature mid-summer, are not as sweet as blueberries.

This plant’s roots produce toxic secretions which hinder the growth of other species. It is often called common heather.

This butterfly is typical of northern regions. Adults can be seen flying around in May and at the beginning of June. Females lay their eggs by sliding backwards under the leaves of the common bistort. Caterpillars then complete their development on the underside of these leaves.

Their silky tuft does not appear during the flowering stage but rather the fruit stage: the cotton-like fibres that make-up this tuft are carried by the wind to aid the dispersal of its seeds.

In the Jura, these trees are found almost exclusively in peat bogs: its bushy silhouette, its short needles that grow in pairs of two and the hook on the leaves of its cones are some of its distinctive features that will help you to identify one.

Already on the map in 1835 under the name “La Roche du Fort”, this belvedere – cleared only a few years ago - opens onto the Anchey combe (Prénovel-Les-Piards), the Nanchez forebay and the peat bog. To the south-east you can see the High-Jura mountain range from the Dole to the Reculet.

The capping on the low dry-stone walls, or crown, maintains and stabilises the sides (visible parts) of the wall. Without it, the stones, and particularly those at the top, would end up falling. Here, you can observe a technique in which large and relatively flat stones, called lauzes, are laid vertically and often stabilised by spacers in between.

More than a place of work or a rudimentary shelter for craftsmen, for those who occupied it, the workshop is a setting that is both intimate and public.
Between the tools used, on the worktops where sawdust is pushed away with the palm of a hand, is where craftsmen build their know-how, by the light shed by the large dusty windows.

The rural house was first the one belonging to the farmer and livestock breed, where men and animals lived together. As from the 18th century, cheese specialisation and the pooling of milk in cooperative structures - “fruitières” - brought farmers out of a self-subsistence economy. In terms of buildings, the farm became bigger: a storey is added to include bedrooms, a second stable is sometimes built to accommodate more animals.