Pittsburg is a city located in Contra Costa County, California, United States. It is situated on the southern shore of the Suisun Bay, which is an important waterway for freight transportation. The city has a rich history in the shipping and transportation industry, dating back to the late 1800s when it served as a major port for the coal and oil industries. The Pittsburg waterfront was a bustling hub of activity, with ships coming and going to transport goods across the bay and beyond.

Today, Pittsburg continues to be an important transportation hub, with its strategic location near major highways and rail lines. The city is served by the Port of Pittsburg, which handles a variety of goods including petroleum products, bulk materials, and containerized cargo. The port's facilities include deep-water berths, cranes, and storage areas, making it a vital link in the region's freight transportation network.

In addition to its role in freight transportation, Pittsburg is also known for its diverse economy and vibrant community. The city is home to a number of industries, including manufacturing, healthcare, and technology. It has a thriving arts and culture scene, with numerous galleries, theaters, and music venues. Pittsburg also boasts a variety of recreational opportunities, with its proximity to the Delta and its many parks, trails, and outdoor spaces.