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| Route information | ||||
| Length | 17 mi (27 km) | |||
| Major junctions | ||||
| Southwest end | Greenhill, Swansea | |||
 A483 A4216 | ||||
| Northeast end | Port Eynon, Swansea | |||
| Location | ||||
| Country | United Kingdom | |||
| Constituent country | Wales | |||
| Road network | ||||
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The A4118 road is in Swansea, Wales, connecting Dyfatty Street in Swansea City Centre with Port Eynon in the Gower Peninsula. The route runs through suburban areas until it reaches Upper Killay, where the road enters rural Gower. It passes over Fairwood Common and through several villages before terminating at Port Eynon.