Metinic Island is approximately 2 miles (3 km) long and is less than half a mile wide at its widest point. There are three very small islets just south and southeast of Metinic, called The Nubble, Hog Island, and Metinic Green Island.
Lobster fishermen operated off the coast of Metinic for generations; the island has also played host to sheep for many years. In 1994–95, the Fish and Wildlife Service acquired 149 acres (0.60 km2) of the island to establish a haven for seabirds, hundreds of which nest on the island. While gulls are the primary nesters, a restoration project was initiated in 1998 to increase tern and Arctic tern nesting populations. The acquisition of the land was not without controversy, as a landowning family was removed from the island to establish the preserve.
- Seabird Restoration in the Gulf of Maine, 2007 Summary - Metinic Island. Fish and Wildlife Service.
- John Turner Probable Interior Department Choice. Ewire, February 8, 2001.
- "Resource Plan for the Northern Portion of Metinic Island, Knox County, Maine" (PDF). Resource Plan for the Northern Portion of Metinic Island, Knox County, Maine. Retrieved 31 January 2017.
- Metinic Island at BoatMaine.us
- "Metinic Island". Geographic Names Information System. United States Geological Survey. 30 September 1980. Retrieved 2010-02-24.