The Whitewater River Run from Headwaters to Confluence with West Fork Big Lost River in Idaho is a thrilling adventure for experienced kayakers and rafters. The ideal streamflow range for this run is between 300 - 800 cfs. The class rating of this run is Class II-III, which means that it has moderate rapids and obstacles that require a significant amount of maneuvering. The segment mileage for this run is approximately 10 miles.

Some of the notable rapids and obstacles on this run include the Twin Bridges Rapid, the Horsethief Rapid, and the Pipeline Rapid. These rapids and obstacles require precise navigation and experience as they can be quite challenging even for experienced paddlers.

There are specific regulations that paddlers must adhere to when running this river. These include obtaining a permit from the Bureau of Land Management, carrying a personal flotation device and a whistle, and ensuring that all trash and waste are packed out of the river.

Overall, the Whitewater River Run from Headwaters to Confluence with West Fork Big Lost River in Idaho is a challenging and exciting adventure for experienced kayakers and rafters. However, it is important to adhere to all regulations and safety guidelines to ensure a safe and enjoyable experience.