NATIONAL SCENIC BYWAY
Mountains to Sound Greenway - I-90
Mountains to Sound Greenway - I-90 is a designated national scenic byway in Washington, running about 99 miles.
99
miles long
WA
state
NSB, STATE
managed by
THE ROUTE
Where the Mountains to Sound Greenway - I-90 runs
Route geometry from the U.S. DOT / FHWA National Scenic Byways dataset. Basemap © OpenStreetMap contributors.
OVERVIEW
About the Mountains to Sound Greenway - I-90
Mountains to Sound Greenway - I-90 is a designated national scenic byway in Washington, running about 99 miles.
PLAN YOUR VISIT