Located in northern Yi-lan County, the Lan-yang Plain is an alluvial delta pinched in between the Xue-shan and Central Mountain Ranges, bounded by the townships of Tou-cheng in the north, Su ’ ao in the south, and San-xing to the west.
位於宜蘭縣北端的蘭陽平原，北起頭城、南至蘇澳、西至三星，是夾處在兩座大山（雪山與中央山脈）與萬頃太平洋之間的三角洲沖積平原。