White Island, New Hampshire
| White Island, New Hampshire | ||
|---|---|---|
| Waters | Atlantic Ocean | |
| Geographical location | 42 ° 58 ′ N , 70 ° 37 ′ W | |
|
||
| Residents | uninhabited | |
White Island is an uninhabited rocky island two kilometers east of the coastal city of Portsmouth in the US state of New Hampshire . On the island there is only a lighthouse built in 1821 , which is supposed to secure the entrance to Portsmouth Harbor .