Sentence:  To find out , we traveled throughout that part of Laos still nominally controlled , in the daytime at least , by the Royal Lao Army : from <WSD>Attopeu</WSD> , the City of Buffalo Dung in the southeast , to Muong Sing , the City of Lions in the northwest , close to Communist China ( map , page 250 ) . 
Meaning of the word marked with <WSD> tags:  a point or extent in space