Rolfsån is a river in Sweden, the main outflow of lake Lygnern. It empties out into the Kungsbacka Fjord.

Basin size
693.7 km2 (267.8 sq mi)[1]Quick facts Location, Country ...
| Rolfsån |
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 Map of Rolfsån's drainage basin. |
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| Country | Sweden |
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Basin size | 693.7 km2 (267.8 sq mi)[1] |
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