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The basalt lava flows of Sant Joan les Fonts

Three different lava flows, superimposed one of top of the other, converged in this part of the valley of the river Fluvià and can be appreciated at Molí Fondo.

The superimposition of three lava flows originating from different eruptive centres.

The morphology of cooling lava: columns and slabs.

Riparian woodland.

Industrial architecture.

The industrial use of water.

Access: Natural Park Itinerary 16 begins in the Plaça Major (main square). Molí Fondo and Boscarró are 800 m away (20 min) and the whole itinerary is 5,5 km (1 hn 50 min).