Related Clues:

• GPS calculation
• Road map line: Abbr.
• 66, famously: Abbr.
• Upper back muscle, for short
• Lower-back muscle, for short
• Bodybuilder's target, briefly
• Road no.
• Rural env. abbr.
• U.S. 1, for one
• Tpk., e.g.
• Pulldown beneficiary, for short
• AAA map abbr.
• Map ref.
• Hgwy.
• Road-map no.