"Tumbledown Chimney Trail:" This trail is considered derelict and should be avoided. It leaves the Loop Trail roughly one mile in, traveling through an extremely rough boulder field. From there, the trail climbs a severely steep, smooth rock slope. Eventually, it reaches the Tumbledown Chimney, which is approximately 15 feet high and very steep. A hand - over - hand climb via a fixed line is required to reach the top. Although the trail is still identified in some older guidebooks, it does not appear to be maintained any longer. Tumbledown is now regularly patrolled by rangers. Hikers should realize that climbing this trail is quite risky due to its steepness. Slabs of rock regularly fall here. An injury can leave a hiker in serious trouble on this mountain.