Discover the exquisite taste of Gucheng Lake crayfish, a renowned delicacy produced in Gucheng Lake, Gaochun District, Nanjing City. This masterpiece, crafted by eqxiu.com's online design platform, showcases the unique characteristics of Gucheng Lake crayfish, celebrated as the 'Crown of Crayfish'. Recognized by the State Administration for Market Regulation as a famous trademark in 2009, it was the first aquatic famous trademark and the first national geographical indication product in China. Originating from the pristine waters of Gucheng Lake, which spans 39 square kilometers in Gaochun District, the lake's clean water, abundant vegetation, and natural food sources make it an ideal habitat for the crayfish. The lake, with a maximum depth of 12 meters and an average depth of 7 meters, is a typical grass-type lake with rich natural food sources, renowned for its high-quality drinking water. Gucheng Lake's unique ecological environment has made it a crucial area for crayfish breeding, with over 300,000 acres dedicated to this practice, contributing significantly to the agricultural economy of Gaochun District. The lake, once covering an area of 65 square kilometers, is now in the shape of a triangle, with a north-wide and south-narrow configuration.