A state highway to be known as state route number 121 is established as follows:

Beginning at a junction with state route number 5 in the vicinity of Maytown, thence easterly, northerly, and westerly by way of Millersylvania state park to a junction with state route number 5 south of Tumwater.

Effective dates—1991 c 342: See note following RCW 47.01.425.