The Whitewater River Run from Lobster Lake to Confluence with West Branch in Maine is a thrilling and challenging adventure for experienced paddlers. The ideal streamflow range for this section of the river is between 1000 and 3000 cfs, and the class rating ranges from II to V, depending on the segment.

The total length of this run is approximately 11 miles, with exhilarating rapids and obstacles scattered throughout the course. Some of the notable rapids include the Big Eddy, which is a Class III rapid, and the Big Mama, which is a Class IV rapid that requires technical paddling skills. Additionally, there are several Class V rapids in the area that should be approached with caution and only attempted by expert paddlers.

It's important to note that this section of the river is subject to specific regulations and permits. Paddlers must obtain a permit from the Maine Bureau of Parks and Lands to access the Lobster Lake area and must follow all rules regarding camping, fires, and littering. Additionally, paddlers must comply with all state fishing regulations in the area.

Overall, the Whitewater River Run from Lobster Lake to Confluence with West Branch is a rugged and challenging paddling experience that should only be attempted by experienced paddlers who are familiar with the area and its unique challenges.