I have been extremely pleased with the quality of Muir-Way's hydrologic map series. I first saw a copy of Muir-Way's paper version US map about 6 months ago and recently ordered a large canvas version of North America (blue). As a professional stream ecologist, I really appreciate the overall accuracy and detail of the work and love this represenation of the Earth's beautiful stream networks (instead of the typical political boundardies or elevation maps that are available). I ordered the NA map as a gift and was concerned that the quality of the paper maps would not translate to canvas well, but these are museum quality productions and the canvas was varnished in a way that creates a smooth surface for the printing. Very high quality. As a final note, I contacted Muir-Way to request that the the map be sent rolled rather than stretched and I spoke to Jared, who graciously answered all my questions and carefully prepared and shipped a new map for me in 2 days. I am sure to be a repeat customer.