MP: .11
Location: Spirit Lake Memorial Hwy and I-5, Castle Rock
Reassurance shield at the beginning of SR 504
MP: 3.6
Location: Spirit Lake Memorial Hwy and S Silver Lake Rd, Cowlitz Cty
Reassurance shield after the turnoff down to Silver Lake Rd. We have already started our ascension- we’ll move from sea level to a little over 4000 feet to get near St. Helens
MP: 14.67
Location: Spirit Lake Memorial Hwy and SR 505, Cowlitz Cty
No real advance signage for SR 505- there’s not a lot of reason for most to take SR 504 east to SR 505 north
