West Branch of the Penobscot River - Roll Dams, Ripogenus Gorge, & Lower West Branch Professional Review and Guide
"This eTrail includes two sections of Maine's Penobscot River - West Branch: Seboomook Dam to Roll Dam Campgrounds and McKay Station to Pockwockamus Falls. The Roll Dams section of the Penobscot is considerably easier than its downstream cousin, Ripogenus Gorge, but it still provides interesting whitewater and a beautiful setting for intermediate paddlers in search of a challenge. The run is short—only 2.5 miles—so it can be repeated several times in a day.
The ledgy character of the Roll Dams is unusual for a New England river, and creates mazes of channels where the river runs through various breaks in the ledges. Paddling both sections involves a long day with lots of pond crossings, so many boaters choose to run Ripogenus Gorge and then drive down to one or two rapids below as a finale. The gorge is the most difficult section, with at least three bona fide class V rapids, one of which, the Cribworks, is among the more difficult drops in New England."