If you know how to get to Blue Creek its on the same path. Follow all blue creek signs, once you get to the actual blue creek entrance, you will see the sign that says Salmon Hatchery(Barrier Dam), con't pass b.creek entrance for about 5-8 miles, signs will take you to barrier salmon hatchery. You can fish the whole stretch below the dam, along with 1,000 other guys.. Good luck.
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Matthew 4:19