The ferry at Zetang: The boatman took up the pole and shoved the boat off a few meters to allow others to wade to the boat. A boat could carry some 30 people, a dozen mules, or goods. Money thus charged would go to the local government. Boatmen were all serfs and were given just a few food grains as payment. This is what is often called "corvee labor" in Tibet. The wooden horse head on the boat symbolizes Hayagriva, believed to protect the boat from the dangers of the rapid current. (1957)