The Sweetwater River is a popular whitewater river run located in the state of Wyoming. The ideal streamflow range for this river is between 500-2000 cfs. The river is rated as a Class III-IV, making it a challenging but accessible run for experienced paddlers. The segment of the river used for whitewater rafting is approximately 17 miles long, starting at the Split Rock Campground and ending at the Sweetwater Guard Station.

The Sweetwater River is known for its technical rapids and obstacles, including "Boulder Scramble," "Rattlesnake," and "Thread the Needle." These rapids require skilled maneuvers and precise paddling to navigate successfully. The river is also known for its stunning scenery, with views of the Wind River and Wyoming Mountain ranges.

There are specific regulations to the area that visitors should be aware of. All boaters are required to have a permit, which can be obtained from the Bureau of Land Management or local rafting companies. Additionally, all boaters must wear a personal flotation device while on the river and are encouraged to practice Leave No Trace principles to minimize impact on the environment.

Overall, the Sweetwater River is a challenging but rewarding whitewater river run in Wyoming. It offers stunning scenery, technical rapids, and specific regulations to ensure safety and environmental conservation.