Trier

West of Trier the border softens: German vineyard roads give way to Luxembourg’s Sauer valley at Echternach, then the Mosel again at Mertert — a cross-border loop measured in quiet climbs rather than famous cols.

From the Roman bridge in Trier the Mosel does most of the talking — vineyards, ferry rocks, and quiet climbs inland through Schweich, Fell and Föhren before the river gathers you again.