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In page Alsace:

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Alsace is the most bicycle-friendly region of France,[citation needed] with 2,000 kilometres (1,200 mi) of cycle routes. The network is of a very good standard and well signposted. All the towpaths of the canals in Alsace (canal des houillères de la Sarre, canal de la Marne au Rhin, canal de la Bruche, canal du Rhône au Rhin) are tarred.