Tinsley Island

Ward Island (also known as Wards Island) is a small island in the Sacramento–San Joaquin River Delta. It is part of San Joaquin County, California. Its coordinates are 38°02′30″N 121°30′09″W, and the United States Geological Survey measured its elevation as 7 ft (2.1 m) in 1981. It appears on a 1952 USGS map of the area.

Headreach Island is a small island in the Sacramento–San Joaquin River Delta, in northern California. A naturally-formed island existing in a complex with Tule Island to the southeast and Fern Island to the northwest, it was used for farming as late as the 1920s. While several proposals for real estate development on the island were made in the late 20th century, it now consists mostly of marsh and submerged land. Black rails live on the island.

Little Venice Island is a small island in the Sacramento–San Joaquin River Delta. It is part of San Joaquin County, California. Its coordinates are 38°03′02″N 121°30′05″W, and the United States Geological Survey measured its elevation as 0 ft (0 m) in 1981. It appears on a 1952 USGS map of the area.

Medford Island is a small island in the San Joaquin River delta, in California. It is part of San Joaquin County, and managed by Reclamation District 2041. Its coordinates are 38.0371435°N 121.5113407°W / 38.0371435; -121.5113407 (Medford Island).

Tule Island is a small island in the Sacramento–San Joaquin River Delta, which exists as part of a complex of islands including directly-adjacent Fern Island and Headreach Island. It is a naturally-formed island, which was used in the early 20th century to farm potatoes, but now consists mostly of marsh. It is currently a habitat for waterfowl and is used as a fishing spot.

The United States Coast Guard Cutter Fir (WAGL/WLM 212) was the last lighthouse tender built specifically for the United States Lighthouse Service to resupply lighthouses and lightships, and to service buoys. Fir was built by the Moore Drydock Company in Oakland, California in 1939. On 22 March 1939, the U.S. Lighthouse Tender Fir was launched. She was steam driven with twin screws, 175 feet (53 m) in length, had a beam of 32 feet (9.8 m), drew 11 feet 3 inches (3.43 m) of water, and displaced 885 tons. Fir was fitted with a reinforced bow and stern, and an ice-belt at her water-line for icebreaking. She was built with classic lines and her spaces were lavishly appointed with mahogany, teak, and brass. The crew did intricate ropework throughout the ship. The cost to build Fir was approximately US$390,000. Fir's homeport was Seattle, Washington for all but one of her fifty one years of service when she was temporarily assigned to Long Beach, California when USCGC Walnut was decommissioned on 1 July 1982. On 1 July 1939 the United States Lighthouse Service became a part of the United States Coast Guard. On 1 October 1940 Fir was commissioned as the United States Coast Guard Cutter Fir (WAGL-212). With the onset of World War II Fir was assigned to the U.S. Department of the Navy and painted battleship grey. The following armament was installed for war service: M2 Browning machine guns, a 3-inch gun, and depth charges. Her wartime duties included picket duty, towing gunnery targets, and patrolling the Washington and Oregon coasts. In 1965, Fir was reclassified as a USCG coastal buoy tender (WLM). On 27 May 1988, after the decommissioning of USCGC Ingham, Fir gained the distinction as the U.S. Coast Guard's oldest commissioned cutter. In accordance with a Coast Guard custom, she displayed gold hull numbers on her bow and was designated as "Queen of the Fleet" on 30 May 1988. On 1 October 1990, the 200th anniversary year of the U.S. Coast Guard, Fir was honored again with the celebration on her 50th birthday. One year later, on 1 October 1991 Fir was decommissioned, and; on 27 April 1992 was designated a National Historic Landmark by the United States Secretary of the Interior. During her career, Fir was a multi-mission ship whose accomplishments mirrored the changing American maritime scene, and the needs of the U.S. Coast Guard for more than half a century. Fir's primary duties included resupplying coal, potable water, food, and other vital provisions; icebreaking, aids to navigation (ATON) maintenance, delivery and pick-up of U.S. Mail for lightships and lighthouses on the Washington and Oregon coasts. Fir tended the lightships at Umatilla Reef off La Push, Washington and Swiftsure Bank at the entrance of the Strait of Juan de Fuca Washington. In addition to servicing aids to navigation (ATON), Fir stood war duties during World War II, performed search and rescue missions, marine environmental protection, and law enforcement. For her last project, Fir was tasked to do what she was originally built for in 1939. In July 1991, Fir renovated and restored the Cape Flattery Lighthouse on Tatoosh Island at the entrance to the Strait of Juan de Fuca. There is successor cutter also named Fir, USCGC Fir (WLB-213), currently in active use by the Coast Guard, which is a 225-foot (69 m) cutter. She was launched in 2003 and is based in Astoria, Oregon.

The Empire Tract is an island in the Sacramento–San Joaquin River Delta in San Joaquin County, California, United States. It has been used for agriculture since the 1800s; in the early 20th century it was used to plant potatoes, and United States president Herbert Hoover operated a beet farm there. In the 1960s, natural gas deposits were discovered beneath the island. In 1936, it was connected to the mainland by the Eight Mile Road Bridge, across King Island. As with many islands in the Delta, the Empire Tract has experienced considerable subsidence, and is well below sea level.

McDonald Island is an island in the Sacramento-San Joaquin River Delta, 53 km (33 mi) south of Sacramento. The 2,400 ha (5,900-acre) island is bounded on the north by San Joaquin River, on the west by Middle River and Latham Slough, and on the south by Empire Cut. It appears unlabeled on a 1913 United States Geological Survey map of the area, and on a 1952 USGS map as "McDonald Tract".It is in San Joaquin County, California, and managed by Reclamation District 2030.

Spud Island is a small island of the San Joaquin River, located in the Sacramento–San Joaquin River Delta in northern California. It was once used to farm onions; while it is no longer used for agriculture, it remains inhabited. In the late 20th century it was the site of a county park, which offered camping, fishing and swimming amenities free of charge.

Venice Island is an island in the Sacramento-San Joaquin River Delta, fifteen kilometres (9.3 miles) northwest of Stockton. It is in San Joaquin County, California, and managed by Reclamation District 2023. It is owned by Barron Hilton and the DiNapoli family. The 3,100-acre (1,300 ha) island is bounded on the north- and northeast by Potato Slough, on the southeast by Little Connection Slough, on the south by the Stockton Deepwater Channel Venice Cut, and on the west by the San Joaquin River-Stockton Deepwater Shipping Channel.

Hog Island is an island in the San Joaquin River, and is one of many islands which constitute the Sacramento–San Joaquin River Delta. It was used for agriculture in the early 20th century, but has now mostly become marsh or submerged land; it remains a spot for fishing, particularly halibut and striped bass.

Acker Island (also known as Lost Isle) is a small island in the Sacramento–San Joaquin River Delta. It is part of San Joaquin County, California. Its coordinates are 37°59′51″N 121°26′56″W, and the United States Geological Survey measured its elevation as 3 ft (0.91 m) in 1981. It appears on a 1952 USGS map of the area.