Mapa topográfico del mar de Mármara.
Own work

Elevation &amp; shade: SRTM Void Filled
Coast: GSHHG
Rivers: WBDB
Lakes: SRTM Waterbody Data
Bathimetry: Natural Earth
Projection: +proj=aea +lat_1=40.04280471210884 +lat_2=41.18250359245717 +lon_0=28.0316162109375
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