Wash. Rev. Code § 47.17.405
A state highway to be known as state route number 206 is established as follows: Beginning at a junction with state route number 2 in the vicinity north of Mead, thence northeasterly to the entrance to Mt. Spokane State Park.
[ 1987 c 199 s 18; 1970 ex.s. c 51 s 82.]