Whatever your method of travel, a road atlas is a handy resource to carry along. Consider any of these atlases from Rand McNally, American Maps, or AAA.
1. Rand McNally Road Atlas
Published by Rand McNally. Pocket, midsize, and motor carrier versions available too.
2. American Map Road Atlas United States
Published by American Map Corporation. Also available in a pocket edition.3. AAA North American Road Atlas
Published by AAA. Pocket version available too.