Swan Lake is a 116-acre (0.5 km²) reservoir on an unnamed tributary of the Middle Raccoon River, just south and east of Carroll, Iowa. It is the southern terminus of the Sauk Rail Trail, a path linking the lake to Blackhawk State Park in Sac County.

Swan Lake
Swan Lake Show map of Iowa Swan Lake Show map of the United States
United States Environmental Protection Agency
Location	Carroll County, Iowa, United States
Coordinates	42.0336°N 94.8403°W / 42.0336; -94.8403
Type	reservoir
Primary inflows	unnamed tributary to the Middle Raccoon River
Primary outflows	unnamed tributary to the Middle Raccoon River
Basin countries	United States

Sources

• Iowa Department of Natural Resources
• Statistics
• U.S. Geological Survey Geographic Names Information System: Swan Lake
• Hypsography (Iowa State University)
• Sauk Rail Trail
• Iowa State University
• Travel Iowa