Cartographic sources
General geographic maps are used as sources for all thematic maps. They serve as the basis for drawing thematic content. Topographic, survey-topographic, and survey maps are reliable and trustworthy sources,
Modern Cartography
General geographic maps are used as sources for all thematic maps. They serve as the basis for drawing thematic content. Topographic, survey-topographic, and survey maps are reliable and trustworthy sources,