English: Map of drainage area of the river Flian in Västergötland, Sweden. Scale circa 1:160,000. Flian is a tributary to the river Lidan. The river Lidan and its tributaries and lakes are marked blue. The drainage area of Flian is green with a red border. In the western part of the drainage area, "Varaslätten" (i.e. "The Vara plain") is marked in yellow hue (light green within the drainage area, yellow outside). In the eastern part of the drainage area, the Falbygden area is marked in orange hue (mossgreen within the drainage area, orange outside). The table-mountains of Västergötland is surrounding the Falbygden area and are marked in dark red hue (olive green within the drainage area, dark red outside). The names are given for Lidan, Flian, and its tributaries Dofsan, Slafsan, and Pösan. The names are also given for the lakes Hornborgasjön and Rösjön, and also Lidan's recipient Kinneviken (a part of lake Vänern). One bog within the drainage area are named: Åsle mosse. The table mountains Billingen and Mösseberg are also named.