SHUITOU, China — Along the valleys and mountains hugging the East China Sea, a Chinese government campaign to remove crosses from church spires has left the countryside looking as if a typhoon had raged down the coast, decapitating buildings at random.

In the town of Shuitou, workers used blowtorches to cut a 10-foot-high cross off the 120-foot steeple of the Salvation Church. It now lies in the churchyard, wrapped in a red shroud.

About 10 miles to the east, in Mabu township, riot police officers blocked parishioners from entering the grounds of the Dachang Church while workers erected scaffolding and sawed off the cross. In the nearby villages of Ximei, Aojiang, Shanmen and Tengqiao, crosses now lie toppled on rooftops or in yards, or buried like corpses.

On a four-day journey through this lush swath of China’s Zhejiang Province, I spoke with residents who described in new detail the breathtaking scale of an effort to remove Christianity’s most potent symbol from public view. Over the past two years, officials and residents said, the authorities have torn down crosses from 1,200 to 1,700 churches, sometimes after violent clashes with worshipers trying to stop them.