Designers can now get intricately detailed maps of the USA and all 50 states in Adobe Illustrator format. Map Resources, map supplier to the professional graphic industry for over 20 years, just released Premier USA – High Detail, its detailed set of US maps to date. High Detail US State maps show all Interstates, US Highways, and State roads, cities with over 25,000 population, plus hundreds of smaller places. High Detail USA country maps include up to 70 feature layers. All features saved in separate layers so they can be edited in Adobe Illustrator.