Ключевые слова: 48, abstract, america, american, art, atlas, background, border, boundary, cartography, conterminous, contiguous, continent, contour, country, county, design, drawing, education, federal, geography, graphic, illustration, isolated, land, line, map, nation, new, north, ocean, shape, silhouette, solid, south, state, states, symbol, territorial, travel, united, us, usa, west, white,