This is what Basque Country's called in Basque!
Flysch is a typical and extremely spectacular rock formation on the Basque coast, which was arranged like puff pastry by sedimentary deposition over a period of more than 100 million years and eroded by the waves into bizarre shapes.
The black flysch of Armintza appears to be the rock most similar to that found on Mars and was therefore used to calibrate analytical instruments in several Mars probes.
In June we're going back to Gorliz for the Upskilling Days Basque Country. Will you be join?