Fortress Island

Island of the United States

Fortress Island

Fortress Island

Geography
Location| San Juan County, Washington
Coordinates| 48°27′55″N 122°50′19″W﻿ / ﻿48.4653786°N 122.8385103°W﻿ / 48.4653786; -122.8385103
Archipelago| San Juan
Administration

United States

Fortress Island is one of the San Juan Islands in San Juan County, Washington, USA. Located in Lopez Sound, the uninhabited, rocky island has a land area of 3.21 acres (1.30 hectares) and is almost completely devoid of vegetation.[1] It is part of the Turtleback complex, a series of intrusive rocks in Lopez Sound formed out of crystallized molten magma that also includes Bird Rock, Low Island, and others.[2]

Fortress Island is part of the San Juan Islands National Wildlife Refuge and is managed by the U.S. Fish and Wildlife Service.[3] As with almost all of the islands in the refuge, human access is prohibited and boats may not approach to within 200 yards (180 m).[4]

## References

[edit]

1. ^ "The Geology of the San Juan Islands". cr.nps.gov. National Park Service. Archived from the original on 27 December 2014. Retrieved 16 January 2015.
2. ^ Protection Island and San Juan Islands National Wildlife Refuges (PDF). U.S. Fish and Wildlife Service. pp. 3–12.
3. ^ "San Juan Wilderness". wilderness.net. Wilderness.
4. ^ "Plan Your Visit". fws.gov. U.S. Fish and Wildlife Service. Retrieved 16 January 2015.