Hog Island (Petaluma River)

San Antonio Creek is a northward then eastward-flowing stream in the California, United States, counties of Marin and Sonoma that forms part of the boundary between those counties. It empties into the tidal portion of the Petaluma River.

Burdell Island (or Mira Monte) is a former island in the Petaluma River, upstream of San Pablo Bay (an embayment of San Francisco Bay). While it was previously surrounded by water and swampland, it is now surrounded mostly by dry land (although it remains much higher than surrounding land). It is part of Marin County, California. Its coordinates are 38°09′22″N 122°33′17″W, and the United States Geological Survey gave its elevation as 52 ft (16 m) in 1981. It appears in a 1954 USGS map of the region.

Marin County Airport or Gnoss Field (IATA: NOT, ICAO: KDVO, FAA LID: DVO), formerly O56, is a public airport two miles northeast of Novato, California, United States. It covers 90 acres (360,000 m2), and has one runway and one helipad.Most U.S. airports use the same three-letter location identifier for the FAA and IATA, but Marin County Airport/Gnoss Field is DVO to the FAA and NOT to the IATA (which assigned DVO to Francisco Bangoy International Airport in Davao City, Philippines). A plan was unveiled in 2014 to extend the length of Gnoss' runway by 1100', to 4400'. The FAA's final recommendation in 2016 called for a 300-foot extension, which would make Runway 31/13 3600 feet. Public commentary, especially from aviators, was negative. Many pilots contended that the FAA has underestimated the level of activity at Gnoss Field.

Rush Creek is a stream in eastern Marin County, California, United States. It originates on the north edge of Novato, California and flows 1.5 miles (2.4 km) northeasterly through wetlands into Black John Slough and then the Petaluma River. The name is associated with Peter Rush who bought land near Novato in 1862.

Olompali (Coast Miwok:Õlõmpõ'llï; Spanish: Olómpali) is a former Native American settlement in Marin County, California. It was located 5 miles (8 km) south of Petaluma.Its site now lies within the Olompali State Historic Park.

The Rush Creek Open Space Preserve or just the Rush Creek Preserve is a nature reserve and open space near Novato, California. It is named for Rush Creek. The 522 acre lot of public land has a host of hiking trails as well as a marsh in the center, and is bordered by various marshes and shallow lakes owned by the California Department of Fish and Game. Due to the proximity of marshes and shallow lakes, all kinds of birds and waterfowl live in the area, with close to 200 species. This makes the preserve a popular destination for birdspotters. Open 24 hours a day, the preserve is also popular for running, hiking, biking, dog walking, and horse riding, as all are allowed on most of the trails. A rare Blue Oak woodland is also located near the Bahia Marsh.

Olompali State Historic Park is a 700-acre (2.8 km2) California State Park in Marin County, California. It is constituted of the former Rancho Olómpali and was the site of the famed Battle of Olómpali during the Bear Flag Revolt. Rancho Olómpali was purchased by the Californian government in 1977, which turned it into a public park.

The Battle of Olómpali was fought on June 24, 1846, between a rebel group supporting an independent California Republic and a Mexican army force under the command of Joaquín de la Torre. It was the only battle of the Bear Flag Revolt. The encounter took place in present-day Marin County, California at a site that is now part of the Olompali State Historic Park.

The Buck Institute for Research on Aging is an independent biomedical research institute that researches aging and age-related disease. The mission of the Buck Institute is to extend the healthy years of life. The Buck Institute is one of nine centers for aging research of the Glenn Foundation for Medical Research.The institute, a nonprofit organization located in Novato, California, began its research program in 1999, making it the world's first institute founded primarily to study intervention into the aging process. It is named for Marin County philanthropists Leonard and Beryl Hamilton Buck, whose estate funded the endowment that helped establish the institute, and the Buck Trust currently contributes approximately $6 million annually to support the institute's work. The campus of the Buck Institute was designed by architect I. M. Pei.In May 2007, the institute established a cooperative agreement with the University of California's Davis and Merced campuses to coordinate stem-cell research.

Lakeville is an unincorporated community in Sonoma County, California, United States. It is located near the Petaluma River about 4 mi (6 km) southeast of Petaluma. The main thoroughfare is Lakeville Road, which passes north–south through Lakeville on its way from State Route 116 to State Route 37. The rear gate of Sonoma Raceway empties onto Lakeville Road and can cause traffic delays on race days. Lakeville's name refers to Tolay Lake, about 2 mi (3 km) east of the town. Lakeville has a fire department with one station, established in 1973. It is located east of the intersection of Lakeville Highway and Stage Gulch Road.

Novato San Marin is a Sonoma–Marin Area Rail Transit station in Novato, California. It opened to preview service on June 29, 2017; and full commuter service commenced on August 25, 2017. It is located on the north side of the city, near where San Marin Drive becomes Atherton Avenue at Redwood Avenue. This was one of two stations planned for Novato in the Initial Operating Segment of SMART service until a third was announced to be partially built for opening at a later date.This site was selected for its proximity to Fireman's Fund Insurance Company headquarters, then one of the largest employers in the county. In SMART's planning phase, the company pledged their employees would heavily patronize the line, but would go on to move corporate operations to Petaluma before the commencement of service. Service to the station was planned to be reduced upon completion of the Novato Downtown station. However, full service to Novato San Marin was retained after Novato Downtown opened in December 2019.

Neils Island (sometimes called Neil Island) is a former island in Sonoma County, California, close to (and formerly surrounded by wetlands of) the Petaluma River, upstream of San Pablo Bay (an embayment of San Francisco Bay). Its coordinates are 38°11′27″N 122°34′41″W, and the United States Geological Survey measured its elevation as 82 ft (25 m) in 1981. It appears in a 1954 USGS map of the region.