Ключевые слова: abstract, administrative, america, area, atlas, border, boundary, cartography, chart, contour, country, county, design, district, education, federal, geography, graphic, gray, icon, illustration, isolated, landmark, line, location, map, nation, nevada, outline, prefecture, province, region, science, shape, silhouette, state, symbol, territorial, texture, topographic, topographical, topography, travel, us, usa,