Bear Creek, Main Stem is a whitewater river run located in the state of California. This river run is rated as class IV and is ideal for experienced paddlers. The ideal streamflow range for Bear Creek, Main Stem is between 300 and 800 cfs. This river run consists of a segment mileage of 6.5 miles and features a number of rapids and obstacles such as Staircase, Triple Threat, and Zoom Flume.

There are specific regulations that must be followed when paddling on Bear Creek, Main Stem. All paddlers must wear a personal flotation device (PFD) at all times while on the river. Additionally, paddlers must not litter and must respect the natural environment. Camping is not allowed along the riverbank, but there are several campgrounds located nearby.

According to the American Whitewater website, Bear Creek, Main Stem is a challenging and technical run that is recommended for experienced paddlers only. The website also notes that the river can be dangerous during high water levels and caution should be exercised at all times.

Overall, Bear Creek, Main Stem is a thrilling and challenging river run that is sure to test the skills of experienced paddlers. With its beautiful scenery and challenging rapids, it is no wonder this river run is a favorite among whitewater enthusiasts in California.