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These data should of course not be used for getting station locations used in interferometric imaging, we have better sources for that. However, it could be useful to overplot data on a street map.
Here are some stations to explore on OpenStreetmap: LOFAR core, I-LOFAR (Ireland), UK608 (Chilbolton UK, with test tiles), LOFAR-Latvia (with surrounding telescopes), KAIRA in Finland (not part of the LOFAR array but LOFAR antennas), Effelsberg.