- Celtic Seafaring and Transport -
Ushant
Bay of
Biscay
----. 36 metrl!S. (20 fathoms I
Figure 15.9 Map of cross-Channel trade routes. (Institute of Archaeology, Oxford.)
- Mid-Channel routes
- Western Brittany to south-west Britain and south-east Ireland
Mediterranean maritime trade routes were linked to these Channel crossings and
their associated coastal routes in one of three ways:
- Up the river Rhone, then portages to the upper reaches of the rivers Loire, Seine
and Rhine. - Up the river Aude, then a portage across the Carcassonne gap to the river
Garonne and Gironde; thence via the coastal route to western Brittany. - Through the strait at Gibraltar and then the Iberian coastal route to western
Brittany. This Atlantic route seems to have been used by Mediterranean merchants
in the late sixth century BC and also by Pytheas on his late fourth-century BC
exploration of northern waters (Hawkes 1977, 1984; Murphy I977; McGrail
I990b: 36). This would have been an arduous passage, especially outbound
from the Mediterranean, with a strong eastward setting current in the Strait and
generally foul winds and currents along the Iberian Atlantic seaboard.
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