Island No. 2

The Napa Sonoma Marsh is a wetland at the northern edge of San Pablo Bay, which is a northern arm of the San Francisco Bay in California, United States. This marsh has an area of 48,000 acres (194 km2), of which 13,000 acres (53 km2) are abandoned salt evaporation ponds. The United States Government has designated 13,000 acres (53 km2) in the Napa Sonoma Marsh as the San Pablo Bay National Wildlife Refuge.The marsh is fed by Sonoma Creek (which drains the Sonoma Valley), Tolay Creek (originating in the Tolay Lake basin), and the Napa River (which drains the Napa Valley). Although the marsh extends north as far as State Route 12, as a practical matter, most of the marsh is only accessible by boat. The marsh is a productive estuarine ecosystem providing habitat for a wide diversity of flora and fauna, including numerous rare and endangered species such as the California clapper rail and California freshwater shrimp. Because of its rich avafaunal content, the Napa Sonoma Marsh is one of only seven marshes selected for intensive study by the Point Reyes Bird Observatory (based on a total of 50 discrete marshes appurtenant to the San Francisco Bay).Around 1860, the Napa Sonoma Marsh was one of the most productive wetlands of the Pacific Coast, providing habitat for millions of birds. By the mid-1980s, the San Francisco Bay perimeter had lost over 91 percent of its wetlands. The Napa Sonoma Marsh represents one of the few sizeable expanses where restoration is feasible.During the Vietnam War, the Navy utilized the marsh as a training ground for crews of the Navy's new Swift boats and patrol boats, operating out of Mare Island Naval Shipyard at the marsh's southern terminus.An extensive research literature base exists for the Napa Sonoma Marsh.

Russ Island is a mostly-submerged island in the Napa River, in Napa and Solano Counties, California. It was reclaimed in the late 19th century, and spent many years as productive farmland; in the 1950s, however, it was purchased by the Leslie Salt Company, and deliberately submerged to serve as an evaporation pond for salt production. The company allowed parts of it to be used for duck hunting. By the 1990s, it was acquired by the California Department of Fish and Game, who turned it into a wildlife preserve, and allowed it to return to marshland; it is now managed as part of the Napa-Sonoma Marshes Wildlife Area, and is open to hunting, fishing, birdwatching, photography and hiking activities.

Island No. 1 (formerly called Cross Island) is a partially submerged island in the Napa River, upstream of San Pablo Bay (an embayment of San Francisco Bay). It is in Napa and Solano County, California, and parts of it are managed as part of the Napa-Sonoma Marshes Wildlife Area. Its coordinates are 38°08′35″N 122°20′40″W, and the United States Geological Survey measured its elevation as 3 ft (0.91 m) in 1981. It, along with Island No. 2, Green Island and Tubbs Island, are labeled on a 1902 USGS map of the area.

Little Island is a partially submerged marsh island in the Napa Slough, branching off from the Napa River upstream of San Pablo Bay (an embayment of San Francisco Bay). It is almost entirely in Napa County, California, although part of its southern tip is in Solano County; it is managed as part of the Napa-Sonoma Marshes Wildlife Area. Its coordinates are 38°10′48″N 122°21′05″W, and the United States Geological Survey measured its elevation as 3 ft (0.91 m) in 1981.

Coon Island is an island in the Napa River, upstream of San Pablo Bay (an embayment of San Francisco Bay). It is in Napa County, California, and managed as part of the Napa-Sonoma Marshes Wildlife Area. Its coordinates are 38°11′33″N 122°19′24″W, and the United States Geological Survey measured its elevation as 3 ft (0.91 m) in 1981.

Knight Island is a mostly-submerged island in the Napa River, upstream of San Pablo Bay (an embayment of San Francisco Bay). It is in Solano County, California, and managed as part of the Napa-Sonoma Marshes Wildlife Area. Its coordinates are 38°08′09″N 122°17′58″W, and the United States Geological Survey measured its elevation as 3 ft (0.91 m) in 1981.

Edgerly Island is an island in the Napa River, upstream of San Pablo Bay (an embayment of San Francisco Bay). It is in Napa County, California, and managed as part of the Napa-Sonoma Marshes Wildlife Area. Its coordinates are 38°12′12″N 122°18′52″W, and the United States Geological Survey measured its elevation as 3 ft (0.91 m) in 1981.

USS Corry (DD-334) was a United States Navy Clemson-class destroyer launched and commissioned in 1921.

Green Island is an island in the Napa River, upstream of San Pablo Bay (an embayment of San Francisco Bay). It is in Napa County, California, and managed as part of the Napa-Sonoma Marshes Wildlife Area. Its coordinates are 38°12′09″N 122°18′16″W, and the United States Geological Survey measured its elevation as 23 ft (7.0 m) in 1981. It, long with Island No. 1, Island No. 2 and Tubbs Island, are labeled on a 1902 USGS map of the area.

Buchli is an unincorporated community in Napa County, California. It lies at an elevation of 16 feet (5 m) between Los Carneros AVA and the Napa-Sonoma Marsh. In the late 19th and early 20th centuries, a railway station in the community was used to ship produce grown in Napa and Sonoma counties along the Southern Pacific Railroad to San Francisco. In 1946, Press Wireless, Inc. constructed a radio station in Buchli which received and processed most news reports from East Asia. The station was the first in the Western United States to receive signals from Sputnik 1. Leslie Salt purchased land to the south in the 1950s, which it developed into salt evaporation ponds. Starting in the 1970s, the California Department of Fish and Wildlife purchased much of the land around Buchli to set aside as a wildlife area.

The 2014 South Napa earthquake occurred in the North San Francisco Bay Area on August 24 at 03:20:44 Pacific Daylight Time. At 6.0 on the moment magnitude scale and with a maximum Mercalli intensity of VIII (Severe), the event was the largest in the San Francisco Bay Area since the 1989 Loma Prieta earthquake. The epicenter of the earthquake was located to the south of Napa and to the northwest of American Canyon on the West Napa Fault.Total damage in the southern Napa Valley and Vallejo areas was in the range of $362 million to $1 billion, with one person killed and 200 injured. Other aspects of the event included an experimental earthquake warning system that alerted seismologists several seconds before the damaging shear waves arrived, temporary changes in springs and wells, and the potential for postseismic fault creep.

Carneros Creek (Spanish: Arroyo de los Carneros) is a south by southeastward flowing stream originating in the southernmost Mayacamas Mountains, in Napa County, California. It is the southernmost tributary to the Napa River, entering 2.5 miles (4.0 km) north of San Pablo Bay and 5 miles (8.0 km) south of the town of Napa.