Port Townsend Ship Canal

Indian Island is an unincorporated community in Jefferson County, Washington, United States. The whole island is covered by the Marrowstone CDP. It is located between Port Townsend Bay and Kilisut Harbor. Parts also border on Oak Bay and Scow Bay. Until the construction of the Port Townsend Ship Canal (also known as Portage Canal) Indian Island was connected to the mainland by a broad sand flat and backshore marsh. Indian Island is the location of the Indian Island Naval Reserve, which covers the entire island. No civilian residences are allowed on Indian Island. Indian Island is attached to Marrowstone Island, and is often grouped with it. Indian Island is served by the ZIP code for Nordland. The entire island has a land area of 11.28 km2 (4.3553 sq mi) and a population of 44 persons as of the 2000 census.

Methodist Episcopal Church of Port Hadlock (Barrett House) is a historic Methodist church, now a private home, at Randolph and Matheson Streets in Hadlock, Washington. Built in 1903, the church was the first permanent Methodist church in Hadlock. The congregation shared a traveling minister with the Methodist church in Chimacum. In the 1950s, the two congregations merged to form a new church; the Hadlock church's old bell and pews were moved to the new church, and the old building became a private residence.The church was added to the National Register of Historic Places in 1983.

Chimacum is an unincorporated community in Jefferson County, Washington, United States, located in the center of the primary agricultural area of the eastern Olympic Peninsula.

Mystery Bay State Park is an eighteen-acre (7.3 ha) Washington marine state park on Mystery Bay, a small inlet off Scow Bay/Kilisut Harbor on the western side of Marrowstone Island. The park is located approximately one-half mile north of the Nordland General Store (which also faces Mystery Bay) on Flagler Road (SR 116). Many older wooden sailboats can be swinging at permanent moorage at the park. Park activities include picnicking, shellfish harvesting, fishing, boating, beachcombing, and scuba diving.

Kinney Point State Park is a 67-acre (27 ha) Washington marine state park in Jefferson County. The park sits on 683 feet (208 m) of shoreline at the south end of Marrowstone Island and has no upland access. The park is part of the Cascadia Marine Trail with campsites restricted to boaters arriving by other than motorized means. Park activities include fishing, clam digging, and crabbing.

Port Hadlock-Irondale is a census-designated place (CDP) in Jefferson County, Washington, United States. The population was 3,983 at the 2020 census.

Marrowstone is a census-designated place (CDP) in Jefferson County, Washington, United States. The population was 844 at the 2010 census. All Marrowstone addresses are in Nordland, Washington, and the ZIP code for Marrowstone Island is 98358. Marrowstone takes its name from Marrowstone Point, the northernmost point on Marrowstone Island. It was given the name "Marrow-Stone Point" in 1792 by the British explorer, George Vancouver, in describing the area's hard, clay-like soil.

Tamanowas Rock (Clallam: t̕əménəwəs) (also spelled Tamanous), also called Chimacum Rock, is a 150-foot (46 m) high rock with caves and crevices that lies in a forest adjacent to Anderson Lake State Park, near Port Townsend, Washington.: 169  It is a sacred site to the Coast Salish peoples of the Pacific Northwest and a pilgrimage site. The rock was listed on the National Register of Historic Places in 2015.

Anderson Lake State Park is a public recreation area on the Quimper Peninsula, seven miles (11 km) south of Port Townsend, in Jefferson County, Washington. The state park has 496 acres (201 ha) of woods and wetland that slope down to 70-acre (28 ha) Anderson Lake. The park offers picnicking, trails for hiking, biking, and equestrian use, non-motorized boating, fishing, and birdwatching. The presence of toxic algae forbids water use of any kind from time to time. Algae blooms generally occur during late spring and summer months.

Anderson Lake is a 57-acre (23 ha) body of water lying 1.5 miles (2.4 km) west of Chimacum in Jefferson County, Washington. It is located in Section 9, Township 29N, Range 1W. Anderson Lake reaches a depth of 29 feet (8.8 m) at its deepest point and has a water volume of 1,228 acre-feet (1,515,000 m3). The lake drains into Chimacum Creek and Port Townsend Bay. It is surrounded by Anderson Lake State Park. The lake's fish population includes lake-reared rainbow trout, that carry over to a second season from the initial spring fishery.Toxic algae has caused the lake to be closed to all access on multiple occasions. The lake has annual cyanobacteria blooms dominated by dolichospermum (anabaena), aphanizomenon and microcystis. It is a major producer of anatoxin-a, a potent neurotoxin. County health officials have monitored local lakes for blue-green algae seasonally since 2007.

Fort Townsend State Park (formerly Old Fort Townsend State Park) is a public recreation area located two miles south of Port Townsend in Jefferson County, Washington. The state park occupies a third of the site of the original Fort Townsend built in 1856. The park includes 3,960 feet (1,210 m) of shoreline on Port Townsend Bay, picnicking and camping areas, 6.5 miles (10.5 km) of hiking trails, and facilities for boating, fishing, and crabbing.

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.