Mount Vernon, WashingtonBellingham, Washingtonnext rest area (northbound)
northbound on Interstate 5
- Bow Hill Rest Area- I-5 southbound (wsdot.wa.gov)
- Monogon (Wikipedia)
In geometry, a monogon, also known as a henagon, is a polygon with one edge and one vertex. It has Schläfli symbol {1}.