Portaging a major rapid on the Yarlung Tsangpo, from http://tibethiddenfalls.com/index.php/blog-gil.
Gyatse Gorge of the Tsangpo in SE Tibet, 2007
In 1994, Troy and Gil Gillenwater, Rick Fisher and Eric Manthey completed the first descent of upper 15 miles of this 50 mile roadless canyon, from near Sangri (29.251N, 92.027E) to Sangzhuling (29.252N, 92.219E), using a paddle raft. After portaging several rapids, they abandoned their raft and hiked 35 miles to their planned takeout at Gyatze.
See their blog at http://tibethiddenfalls.com/index.php/blog-gil for a great story and pics.