This river drains the largest mountain ringed river basin in America that is still virtually unaffected by human activities. However, this high-use area is a designated wilderness concern. Vegetation around lakes at the various put-in and take-out points is being destroyed and the impact is detracting from the area's wild character. After arriving, move directly to the river to camp on gravel bars. Use existing trails between lakes and the river. Do not build fires on the tundra.