|Coordinates: 37°27′54″N121°58′28″W / 37.46500°N 121.97444°W Coordinates: 37°27′54″N121°58′28″W / 37.46500°N 121.97444°W|
|Elevation||7 ft (2 m)|
Drawbridge (formerly Saline City)  is a ghost town  with an abandoned railroad station located at the southern end of the San Francisco Bay, next to Station Island, now a part of the city of Fremont, California, United States. It is located on the Union Pacific Railroad 6 miles (10 km) south of downtown Fremont,  at an elevation of 7 feet (2 m). Formerly used as a hunting village, it has been a ghost town since 1979 and is slowly sinking into the marshlands.  It is now part of the Don Edwards San Francisco Bay National Wildlife Refuge and is illegal to visit. 
Drawbridge was created by the narrow-gauge South Pacific Coast Railroad on Station Island in 1876 and consisted of one small cabin for the operator of the railroad's two drawbridges crossing Mud Slough and Coyote Creek to connect Newark with Alviso and San Jose. At one time 10 passenger trains stopped there per day, five going north and five going south. The drawbridges were removed long ago. The only path leading into Drawbridge is the Union Pacific Railroad track.
In the 1880s, on weekends nearly 1,000 visitors flocked to the town. By the 1920s, although the town had no roads, it did have 90 buildings, and was divided into two neighborhoods: the predominantly Roman Catholic South Drawbridge, and the predominantly Protestant North Drawbridge. 
After the drawbridges were removed and most of the residents had left, the San Jose Mercury News for years incorrectly reported that the town was a ghost town and that the residents left valuables behind. As a result, the people still living there had their homes vandalized.  The town's last resident is said to have left in 1979, and Drawbridge is considered to be the San Francisco Bay Area's only ghost town.  Drawbridge is now part of the Don Edwards San Francisco Bay National Wildlife Refuge   and is no longer open to the public due to restoration efforts, though it can still briefly be viewed from Altamont Corridor Express, Capitol Corridor, and Coast Starlight trains.
The Dumbarton Bridge is the southernmost of the highway bridges across San Francisco Bay in California. Carrying over 70,000 vehicles and about 118 pedestrian and bicycle crossings daily, it is the shortest bridge across San Francisco Bay at 1.63 miles. Its eastern end is in Fremont, near Newark in the San Francisco Bay National Wildlife Refuge, and its western end is in Menlo Park. Bridging State Route 84 across the bay, it has three lanes each way and a separated bike/pedestrian lane along its south side. Like the San Mateo Bridge to the north, power lines parallel the bridge.
San Francisco Bay is a large tidal estuary in the U.S. state of California, and gives its name to the San Francisco Bay Area. It is dominated by the large cities of San Francisco, San Jose, and Oakland.
Fremont is a city in Alameda County, California, located in the East Bay region of the Bay Area. Fremont has a population of 230,504 as of 2020, making it the fourth most populous city in the Bay Area, behind San Jose, San Francisco, and Oakland. It is the closest East Bay city to the high-tech Silicon Valley network of businesses, and has a strong tech industry presence.
Northern California is a geographic and cultural region that generally comprises the northern portion of the U.S. state of California. Spanning the state's northernmost 48 counties, its main population centers include the San Francisco Bay Area, the Greater Sacramento area, the Redding, California, area south of the Cascade Range, and the Metropolitan Fresno area. Northern California also contains redwood forests, along with most of the Sierra Nevada, including Yosemite Valley and part of Lake Tahoe, Mount Shasta, and most of the Central Valley, one of the world's most productive agricultural regions.
Alviso is a district of San Jose, California, located in North San Jose on the southern shores of San Francisco Bay. Originally an independent town, founded in 1852, today Alviso is San Jose's only waterfront district, primarily residential in nature, with several Silicon Valley tech companies and recreation-oriented businesses. Alviso is named after 19th-century Californio ranchero Ignacio Alviso, who owned the area as part of his Rancho Rincón de Los Esteros.
The Capitol Corridor is a 168-mile (270 km) passenger train route in Northern California operated by Amtrak between San Jose, in the Bay Area, and Auburn, in the Sacramento Valley. The route is named after the two points most trains operate between, San Jose and Sacramento. The route runs roughly parallel to Interstate 880 and Interstate 80. Some trips run from Oakland to San Jose, while a single daily round trip runs all the way from San Jose to Auburn, in the foothills of the Sierra Nevada. Capitol Corridor trains started in 1991.
Niles Canyon is a canyon in the San Francisco Bay Area formed by Alameda Creek, known for its heritage railroad and silent movie history. The canyon is largely in an unincorporated area of Alameda County, while the western portion of the canyon lies within the city limits of Fremont and Union City. The stretch of State Route 84 known as Niles Canyon Road traverses the length of the canyon from the Niles district of Fremont to the unincorporated town of Sunol. Two railroads also follow the same route down the canyon from Sunol to Niles: the old Southern Pacific track along the north side, now the Niles Canyon Railway, and the newer Union Pacific track a little to the south. At the west end of the canyon are the ruins of the Vallejo Flour Mill, which dates to 1853.
Don Edwards San Francisco Bay National Wildlife Refuge (DESFBNWR) is a United States National Wildlife Refuge located in the southern part of San Francisco Bay, California. The Refuge headquarters and visitor center is located in the Baylands district of Fremont, next to Coyote Hills Regional Park, in Alameda County. The visitor center is on Marshlands Rd, off Thornton Ave.
The Niles Canyon Railway (NCRy) is a heritage railway running on the first transcontinental railroad alignment through Niles Canyon, between Sunol and the Niles district of Fremont in the East Bay of the San Francisco Bay Area, in California, United States. The railway is listed on the National Register of Historic Places as the Niles Canyon Transcontinental Railroad Historic District. The railroad is operated and maintained by the Pacific Locomotive Association which preserves, restores and operates historic railroad equipment. The NCRy features public excursions with both steam and diesel locomotives along a well-preserved portion of the First transcontinental railroad.
Bair Island is a marsh area in Redwood City, California, covering 3,000 acres (1,200 ha), and includes three islands: Inner, Middle and Outer islands. Bair Island is part of the larger Don Edwards San Francisco Bay National Wildlife Refuge. It is surrounded by the Steinberger slough to the northwest and Redwood Creek to the southeast.
Santa Clara Transit Center is a railway station in downtown Santa Clara, California. It is served by Caltrain, Amtrak Capitol Corridor, and Altamont Corridor Express (ACE) trains. It is the planned terminus for the Silicon Valley BART extension into Santa Clara County. The former station building, constructed in 1863 by the San Francisco and San Jose Railroad, is used by the Edward Peterman Museum of Railroad History.
The South Pacific Coast Railroad (SPC) was a 3 ft narrow gauge steam railroad running between Santa Cruz, California and Alameda, with a ferry connection in Alameda to San Francisco. The railroad was created as the Santa Clara Valley Railroad, founded by local strawberry growers as a way to get their crops to market in San Francisco and provide an alternative to the Southern Pacific Railroad. In 1876, James Graham Fair, a Comstock Lode silver baron, bought the line and extended it into the Santa Cruz Mountains to capture the significant lumber traffic coming out of the redwood forests. The narrow-gauge line was originally laid with 52-pound-per-yard (26 kg/m) rail on 8-foot (2.44 m) redwood ties; and was later acquired by the Southern Pacific and converted to 4 ft 8+1⁄2 instandard gauge.
Martinez station is an Amtrak passenger train station in Martinez, California, United States. Located at the west end of downtown Martinez, the station has one side platform and one island platform, which serve three of the four tracks of the Union Pacific Railroad Martinez Subdivision. It is served by the daily California Zephyr and Coast Starlight long-distance trains, five daily round trips of the San Joaquin corridor service, and fifteen daily round trips of the Capitol Corridor service. Martinez is also served by Amtrak Thruway buses plus County Connection, Tri-Delta Transit, and WestCAT local buses.
Mowry Slough is a 5.8-mile-long (9.3 km) slough in Don Edwards San Francisco Bay National Wildlife Refuge and is the primary breeding ground for San Francisco Bay harbor seals. It is situated among the salt marshes and salt evaporation ponds in the city of Fremont.
Santa Clara County, officially the County of Santa Clara, is the sixth-most populous county in the U.S. state of California, with a population of 1,936,259, as of the 2020 census. Santa Clara County and neighboring San Benito County together form the U.S. Census Bureau's San Jose-Sunnyvale-Santa Clara metropolitan statistical area, which is part of the larger San Jose-San Francisco-Oakland combined statistical area. Santa Clara is the most populous county in the San Francisco Bay Area and in Northern California. The county seat and largest city is San Jose, the 10th-most populous city in the United States, California's third-most populous city and the most populous city in the San Francisco Bay Area.
The Dumbarton Rail Bridge lies just to the south of the Dumbarton road bridge. Built in 1910, the rail bridge was the first structure to span San Francisco Bay, shortening the rail route between Oakland and San Francisco by 26 miles (42 km). The last freight train traveled over the bridge in 1982, and it has been proposed since 1991 to reactivate passenger train service to relieve traffic on the road bridges, though this would entail a complete replacement of the existing bridge. Part of the western timber trestle approach collapsed in a suspected arson fire in 1998.
Greco Island is a wetland island in Redwood City, California. Greco Island is part of the larger Don Edwards San Francisco Bay National Wildlife Refuge. Westpoint Slough follows the South side of the island while Redwood Creek is along the West. The San Francisco Bay bounds the North and East sides of the island.
The Laguna Creek watershed consists of 25.1 square miles (100 km2) of land within northern California's Alameda County. The watershed drains the foothills of the Diablo Range south of Niles Canyon. To the southeast, the area of Mission Peak Regional Preserve around Mission Peak is included. Agua Caliente, Canada del Aliso, Mission, Morrison, Sabercat, Vargas, and Washington creeks drain the area of the watershed. They drain into Laguna Creek and eventually Mud Slough.
The San Francisco Bay Salt Ponds are an approximately 16,500-acre (6,700 ha) part of the San Francisco Bay that have been used as salt evaporation ponds since the California Gold Rush era. Most of the ponds were once wetlands in the cities of Redwood City, Newark, Hayward and other parts of the bay.