The North Yuba River is a major tributary of the Yuba River in northern California, originating high in the Sierra Nevada mountains and flowing southwest for approximately 85 miles before joining the Middle Yuba River to form the main Yuba River. This pristine river carves through steep canyons and dense forests, offering some of the most challenging and scenic whitewater in the state. The North Yuba is renowned for its exceptional paddling opportunities, with several distinct sections catering to different skill levels.

The upper reaches, including the Wild Plum and Moss Canyon runs near Sierra City, feature intense Class IV-V rapids that test even expert paddlers. Further downstream, the Goodyear's Bar to Indian Valley section (known as the Maytag Run) offers a thrilling Class IV experience, while the Indian Valley to Bullards Bar stretch provides a more moderate Class IV wilderness adventure. Overall, the North Yuba demands solid Class IV-V skills, with many sections suitable only for experienced whitewater enthusiasts. The river's difficulty is compounded by its remote nature and often cold, swift waters.

The optimal paddling season typically runs from late spring to early summer, coinciding with snowmelt from the Sierra Nevada. Water levels can fluctuate dramatically, so checking current flow rates is crucial for a safe experience. The river corridor supports a diverse ecosystem, including stands of old-growth conifers, black bears, and occasional sightings of bald eagles. The crystal-clear waters are home to rainbow and brown trout, making it a popular destination for anglers as well.

Key landmarks include the historic mining towns of Downieville and Sierra City, which serve as important access points. The imposing Sierra Buttes provide a dramatic backdrop to the upper river sections. Primary put-ins and take-outs are located near Sierra City, Downieville, Goodyear's Bar, and New Bullards Bar Reservoir. These small mountain communities offer basic services for paddlers and are gateways to the surrounding Tahoe National Forest.

The North Yuba played a significant role in California's Gold Rush history, with numerous mining camps once dotting its banks. Today, it remains an important recreational resource and a vital part of the region's watershed. Safety considerations include the river's remote nature, challenging rapids, and cold water temperatures. Paddlers should be well-prepared with appropriate gear and experience. Some sections may require permits or have seasonal restrictions.

For those seeking a multi-day adventure, it's possible to link several sections for an extended trip, with primitive camping available at designated sites along the river. However, careful planning is essential due to the river's difficulty and limited access points.