Around the mines (trail route no. 22)

10 points of interest

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  Fauna

  The common chiffchaff

  When spring arrives, a relentless «cheep, cheep» echoes around the forest. The singer is a small bird with a greenish grey and yellowish-white back, the common chiffchaff. Like other inconspicuous birds, the male has every incentive to make himself heard if he wants to attract the attention of a female! They are migratory and live almost anywhere where there are trees and bushes. 

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  Flora

  The sea-buckthorn

  Here and there, you come across a bush with narrow leaves which are green on their upper sides and silvery-grey underneath. Take care, the branches are spiky! In autumn, it produces acidic bright orange berries. They are very rich in vitamin C and are best as a syrup or marmalade. It is a pioneer species which colonises alluvial soils in sunny situations. It has also been used by the Mountain Terrain Restoration service to stabilise slopes prone to water runoff. 

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  Flora

  The wild angelica

  On the edges of seepage areas, the wild angelica grows. This is a tall umbellifer (the Apiaceae family) with blush white flowers and a hollow purplish stem. It is a cousin of garden angelica which grows in Northern Europe and is cultivated for its medicinal and culinary properties. The stem, the petiole (the «tail») and the leaf sheath can be candied.

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  Water

  The Fournel

  The Fournel mountain stream gives generously. Its water makes up a large proportion of the town's drinking water, supplies the irrigation canals, is used for hydropower and offers a recreational area valuable to the local economy in the form of its canyon, located in the gorge connecting it to the Durance. Being a mountain stream, it is impetuous, but sills have been built lower down and it has been dammed to prevent natural disasters. Numerous mountain streams have received the same treatment…

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  Vernacular heritage

  The silver mines

  The path passes close to the silver mines which gave L'Argentière its name (argent meaning "silver"). They were first worked in the early Medieval period and later abandoned before exploitation resumed again in the nineteenth century. They were finally closed in 1908. Since 1992, the site has been the subject of archaeological excavations, with major work to clear materials carried by the Fournel when in flood. They can be visited with a guide (by appointment), leaving the visitor in awe: how much ingenuity has been involved in extracting the silver-bearing galena!

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  Flora

  The Apollo

  This large white butterfly decorated with black marks and red dots, is common in warm areas where stonecrops and houseleeks grow, as these are host plants for its caterpillars. It remains common in the Alps, but is much rarer elsewhere. In fact, it is a protected species. Its movement to higher altitudes has been observed, in line with climate warming, because its eggs, which it lays on plants in summer, need a certain number of days of freezing temperatures in winter in order to hatch.

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  Vernacular heritage

  The hamlets of L'Argentière

  Before it was attached to the municipality of La-Bessée during the revolutionary period, L'Argentière covered this well-exposed slope, with all its hamlets from the church to Eychaillon. It was only in the second half of the nineteenth century, when the Durance was dammed and industries sprang up here, that the modern town of L'Argentière developed in the plain between the two old localities. The path takes you on a discovery of the old hamlets and their very attractive houses.

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  History

  The Francis turbine

  The American James Francis developed the Francis turbine between 1849 and 1855. It is a “àreaction” turbine suitable for medium-sized waterfalls (with a water head of between 15 and 500 metres). The water enters the turbine and then circulates between the turbine blades, which are fixed, while the inner wheel is mobile. The pressure at the wheel intake is greater than the pressure at the outlet. 

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  Water

  The Durance

  The Durance is the biggest river in Provence. Its source rises in the municipality of Montgenèvre at an altitude of 2,390 metres, and it flows down to meet the Rhône to the south of Avignon. This is a "pluvio-nival" river, that is to say, its flow depends on the natural addition of water due to snowmelt and rainfall. It thus constitutes a real playground for kayakers from across Europe.

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  Water

  The white water stadium

  As part of its restructuring after the closure of the industrial site, the town of L'Argentière-la-Bessée opted for sports tourism, exploiting the natural elements present on the site, that is to say, water. Standing at the beginning of the longest navigable section of the Durance river, in 1993 the municipality decided to establish itself as a major white water centre by creating this stadium which covers a 400-metre stretch. So thanks to its reputation and its ideal situation, every year this stadium hosts several elite competitions at national and international level.

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