Crockett Lake

Fort Casey State Park is located on Whidbey Island, in Island County, Washington state. It is a Washington state park and a historic district within the U.S. Ebey's Landing National Historical Reserve. Admiralty Inlet was considered so strategic to the defense of Puget Sound in the 1890s that three forts—Fort Casey on Whidbey Island, Fort Flagler on Marrowstone Island, and Fort Worden at Port Townsend—were built with the intention to create a "triangle of fire" against invading ships. This military strategy was based on the theory that the three fortresses would thwart any invasion attempt by sea.

The Admiralty Head Light is a deactivated aid to navigation located on Whidbey Island near Coupeville, Island County, Washington, on the grounds of Fort Casey State Park. The restored lighthouse overlooks Admiralty Inlet. It was the companion to the Point Wilson Light, which sits four miles away on Admiralty Inlet's western shore.

Keystone is a small unincorporated community on Whidbey Island in Island County, Washington, in the northwestern United States. It is near the Keystone ferry landing, a dock at Keystone Harbor for the Washington State Ferries' Coupeville to Port Townsend route. The route provides a maritime link for State Route 20 across Admiralty Inlet to the Olympic Peninsula. Since its establishment in the 1930s, the ferry route to Port Townsend was known as the Keystone-Port Townsend Ferry; the name was changed in 2010 at the suggestion of the Central Whidbey Chamber of Commerce in order to avoid confusion from tourists and visitors to Whidbey Island.Keystone is located about four miles south of Coupeville, next to Fort Casey State Park, Camp Casey, and is two miles from Ebey's Prairie National Historic Preserve. There is a residential area and farms in Keystone, including the historic Crockett Barn located next to the Crockett Blockhouse and Crockett Lake. Currently, the only business in Keystone is Callen's Restaurant, located directly across Highway 20 from the ferry landing and boat launch parking area.

Naval Outlying Landing Field Coupeville—or NOLF Coupeville—(ICAO: KNRA, FAA LID: NRA) is a military airport located two miles (3 km) southeast of Coupeville, Washington, in Island County. The airfield is owned and operated by the United States Navy. NOLF Coupeville nearly touches State Route 20 and is about 10 miles south of the Whidbey Island Naval Air Station.

Admiralty Inlet Natural Area Preserve in Island County, Washington is part of the Washington Natural Areas Program. It lies along Admiralty Inlet within Ebey's Landing National Historical Reserve on land owned by the Whidbey Camano Land Trust with a conservation easement owned by the Washington Department of Natural Resources. Admiralty Inlet NAP is home to one of only 11 remaining populations of golden paintbrush, a flowering plant listed as threatened under the Endangered Species Act. The preserve's 46 acres (19 ha) includes old-growth forest, a rare remnant prairie, and shoreline.The Whidbey Camano Land Trust purchased the site from Seattle Pacific University for $3.3 million in June 2013.

Whidbey Island (historical spellings Whidby, Whitbey, or Whitby) is the largest of the islands composing Island County, Washington, in the United States, and the largest island in Washington state. Whidbey is about 30 miles (48 km) north of Seattle, and lies between the Olympic Peninsula and the I-5 corridor of western Washington. The island forms the northern boundary of Puget Sound. It is home to Naval Air Station Whidbey Island. The state parks and natural forests are home to numerous old growth trees. According to the 2000 census, Whidbey Island was home to 67,000 residents with an estimated 29,000 of those living in rural locations. This increased slightly to 69,480 residents as of the 2010 census.Whidbey Island is approximately 37 miles (60 km) from north to south, and 1.5 to 10 miles (2.4 to 16.1 km) wide, with a total land area of 168.67 square miles (436.9 km2), making it the 40th largest island in the United States. It is ranked as the fourth longest and fourth largest island in the contiguous United States, behind Long Island, New York; Padre Island, Texas (the world's longest barrier island); and Isle Royale, Michigan. In the state of Washington, it is the largest island, followed by Orcas Island.

Ebey's Landing National Historical Reserve is a unit of the National Park Service on Whidbey Island in the Puget Sound, near Coupeville in Island County, Washington, United States.

Coupeville is a town on Whidbey Island, in Island County, Washington, United States. It is the county seat of Island County. The population was 1,831 at the 2010 census.

The Coupeville grain wharf is a wharf built in 1905 in Coupeville, Washington. It was formerly used for exporting grain produced on Whidbey Island. It is a contributing property to the Central Whidbey Island Historic District, registered on the National Register of Historic Places in 1973.

Admiralty Inlet is a strait in the U.S. state of Washington connecting the eastern end of the Strait of Juan de Fuca to Puget Sound. It lies between Whidbey Island and the northeastern part of the Olympic Peninsula.

The Marrowstone Point Light is an active navigational aid overlooking Admiralty Inlet at the northern tip of Marrowstone Island, Jefferson County, Washington, in the United States. It lies adjacent to but is not part of Fort Flagler State Park; it may be viewed from the park's beach but is not open to the public.

Fort Flagler State Park is a public recreation area that occupies the site of Fort Flagler, a former United States Army fort at the northern end of Marrowstone Island in Washington. The state park occupies 1,451 acres (587 ha) at the entrance to Admiralty Inlet and the Marrowstone Point Light lying adjacent. Port Townsend is visible to the northwest, the cranes at the Navy base on Indian Island to the west, and Whidbey Island to the east across Admiralty Inlet. Flagler Road (SR 116) terminates at the park entrance.