RCW 47.17.105: State route No. 25.

A state highway to be known as state route number 25 is established as follows:

Beginning at a junction with state route number 2 at Davenport, thence northerly by the most feasible route to a junction with state route number 395 in the vicinity of Kettle Falls, thence northeasterly by the most feasible route to international boundary line.