Keywords: NieuweMerwedeTrace.png Detail from the map for the former municipality of en Dubbeldam en The Netherlands showing the project trajectory of the en Nieuwe Merwede en ship canal constructed in 1870 Original map is part of the following publication Kuyper J 1870 Gemeente Atlas Van Nederland en Leeuwarden Suringar PD-old original upload log page en wikipedia NieuweMerwedeTrace png 2007-07-23 13 39 Cwoyte 553×424×8 229760 bytes <nowiki>Detail from the map for the former municipality of Dubbeldam The Netherlands showing the project trajectory of the Nieuwe Merwede ship canal constructed in 1870 Original map is part of the following publication Kuyper J 1870 </nowiki> Maps of waterways in the Netherlands Gemeente Atlas van Nederland - South Holland |