Take Highway 16 to 302 (Purdy, Key Center) go across the Purdy bridge and stay on 302 until you get to creviston go left. You should have just gone through Wauna and passed the Chevron station. Stay on Creviston until you get to the hatchery on your right. I have never fished the Minter Creek but you should be able to figure out how to access the creek from there. It should take about thirty minutes or there about to get there from Kent, depending on how far you are from I-5.

Good luck and have fun.
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I will teach my son to fish, and that will make me glad.