Marion Reservoir
General data
- Name: Marion Reservoir
- Water system: Mississippi River
- Water type: Artificial lake
- Progression: North Cottonwood River -> Cottonwood River (Kansas) -> Neosho River (Grand River) -> Arkansas River -> Mississippi River -> Gulf of Mexico -> Atlantic Ocean -> Planet Earth
- Climates: Temperate
- Continents: North America
- Countries: United States of America