The Arc is both a living biological environment and an indispensable resource for mankind. It is also a major element of the landscape. The Arc and all the wetlands are rich in species and vulnerable to certain human activities.
Flora: German tamarisk, false-daphne willow, false helenian cirse, Alpine butterwort.
Fauna: dipper, bat with moustache and Natterer's viper, wandering sandpiper, calamite toad, spotted fly, rufous russet, bee-eater dragonfly.
Excerpts from the book "Patrimoine naturel de Bessans" (Natural heritage of Bessans).
- River
The river Arc, its gravel banks, its specific vegetation
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The river Arc is part of the village life. It changes its river bed according to the requent flood and leaves its prints in the landscapes.
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