The Raging River is about 12 miles long and its basin covers about 32 square miles. About 74% of the basin is zoned forestry. It includes more than 4,000 acres of protected Natural Resource land along its headwaters and has more than 5 tributaries.
The Raging River is one of the most important rivers for Chinook salmon and Steelhead recovery and has been a priority for King County and environmental groups for a long time.
This threat is both the reopening of the existing quarry in 2015 and a proposed expansion of 26 additional acres. Possible impacts include: