The Gwango Reservoir' (관고저수지, 官庫貯水池) is a body of water in the city of Icheon in Gyeonggi-do, right under the mountain Seolbongsan (설봉산, 雪峯山, 393m). It has a depth of 99 m. Other names include Seolbong Reservoir or Seolbong Lake (설봉호). It was created in 1970 at a total cost of 28 million won.

The west side of the reservoir has an area for practicing archery (궁술, 弓述).