Gorleston (Range Rear) Lighthouse is located near mouth of River Yare in the Gorleston-on-Sea area of Great Yarmouth in the English county of Norfolk.[1][2] The lighthouse was built in 1878. Gorleston-on-Sea lighthouse carries two lights. The rear light for the harbour entrance range (white light, 4 seconds on, 2 seconds off) is mounted on the tower with a focal plane of 6.7 metres (22 ft); a fixed red light is also displayed from the gallery with a focal plane of 20.1 metres (66 ft).