The Whitewater River Run Quartz Road To Confluence With Middle Fork Snoqualmie River in Washington is a Class III-IV stretch of whitewater with a total segment mileage of 4.2 miles. The ideal streamflow range for this run is between 1,000 and 3,000 cfs, with the highest flows occurring during the spring snowmelt season. This run features a series of challenging rapids and obstacles, including Grasshopper, Boulder Drop, and Rattlesnake.

One notable feature of this river is the narrow canyon walls, which can make navigation tricky. It is important to be aware of the specific regulations to the area, including the requirement for each person on the river to wear a properly fitted personal flotation device (PFD). Additionally, there are restrictions on launching from certain areas and on the use of alcohol on the river. It is recommended to check with local authorities before embarking on this run to ensure compliance with all regulations.

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