Poster Size USA Map - High Detail with Grayscale Terrain BackgroundAbout This Digital USA Map With Grayscale Terrain Includes terrain relief image in the land with country borders US states, major cities, rivers, and roads. This map is drawn at a size of about 30 x 20 inches. The background terrain is a 300 dpi grayscale Photoshop file. Line features are in vector layers (see list below) and are fully editable. All text is font text (not outlines). Perfect for large illustrations in print or web design.