Across China: American travelers experience timeless history of China's ancient "Shudao"

CHENGDU, April 7 (Xinhua) -- Sandra Dorothy Carpenter paused to catch her breath as visitors inched forward against the rock, testing each foothold on the narrow cliff path -- barely wide enough for a single step.

"I did it because I wanted to do it," she said. "But many people had to use that pass because that was the way across."

Carpenter, a former vice principal of Wuhan Yangtze International School,