From Seattle go east on I-90, take Exit 80 (Roslyn & Salmon La Sac), take left at stop sign onto Bull Frog road. At the second roundabout follow signs towards Roslyn. In Roslyn take a left on Pennsylvania Avenue to go to Downtown Roslyn.
If you are coming from the east, the directions are the same, except take a right onto Bull Frog Road after exiting I-90.
To Cle Elum:
Cle Elum is 4 miles east of Roslyn when heading on I-90 from Seattle – take Exit 84. If you are coming from Eastern Washington, the exit is not at the same location (a little less than a mile apart), but it is still Exit 84. See above link.