E4 E4 is 12.000 km and passes though Spain, France, Switzerland, Germany, Austria, Hungary, Serbia, Bulgaria, Greece and Cyprus. The data on the countrypages are data, which are verified by ERA. E4 in Spain E4 in Germany E4 in Austria E4 on Waymarked Trails E4 on Wikipedia E4 on Traildino E4 books and maps Posts about E4 E-paths
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