Below the dam lies the rugged, inaccessible Bear Trap Canyon, which has some outstanding rapids. The Bureau of Land Management currently manages this 9-mile section of the river known as the Bear Trap Canyon Recreation Area. It encompasses 36,700 acres and is a designated wilderness. The Bear Trap has a few hazards other than tough whitewater. Rattlesnakes inhabit the canyon, and if you believe all the stories, they're more common than earthworms.
Ticks are numerous in the spring.
Poison ivy awaits you. Grizzly bears occasionally make an appearance as well. The Bureau of Land Management has published an excellent map of the river and the Bear Trap Canyon called the Bear Trap Canyon Wilderness Visitor's Guide. It has an excellent topographic map as well as photos of the approaches to the four major rapids. It's available free of charge by writing to the Bureau of Land Management.