Definition of "Yipin"

The simple rice transplanter manufactured by a machine shop of Yipin County is one of the farm tools to be widely popularised throughout the province this spring[...]Members of a commune in Yipin are busy applying manure to the fields of rapeseed in full bloom

1959 March 20, “Heralding Spring Sowing in Szechuan”, in China Pictorial‎, number 6, page 18?

The Chinsha was a formidable obstacle, falling from a height above sea level of some 8,200 feet at Paan or Batang on the Szechuan-Tibet border to less than 900 feet at Yipin, where it enters the Red Basin to become the Yangtze. From beginning to end, from the headwater in Chinghai to Yipin, the Chinsha River falls by an average of about eighteen feet per mile.

1971, Dick Wilson, The Long March 1935: The Epic of Chinese Communism's Survival‎, New York: Viking Press, page 116

Another wall poster of May 16 in Yipin, Szechuan, was signed “Warriors of a Lookout Post on the Tsueyping Mountain.” It rebuked Hua, along with Yeh Chien-ying and Wang Tung-hsing, for “sheltering associates of the gang of four.” It warned that a civil war would be inevitable if they continued their present policies, the intelligence report said.

1977 July 3, “Anti-Hua activites active on mainland”, in Free China Weekly‎, volume XVIII, number 26, Taipei, page 3