Claiming roots that date back to California's earliest days, Brentwood thrived for decades as an agricultural center. While residences began to replace farmland by the 1980s, agriculture remains as a vital presence in the rapidly expanding community. Several large East Bay business parks are within an easy commute of Brentwood, including the Sandia and Lawrence Livermore national laboratories and the Port of Stockton transportation hub. Highway 4 passes through Brentwood, BART stations are just minutes from home, and Vasco Road now links the town to the Interstate 580 corridor and the neighboring cities of Livermore, Tracy, Pleasanton, and Dublin. The proximity to the California Delta provides a vast network of prime waterways for exceptional fishing, boating, and water sports. The Marsh Creek Trail links the community to outstanding regional parks like Black Diamond Mines, Mt. Diablo State Park, Big Break Wetlands Area, and Contra Loma Regional Parks. Closer to home, city parks offer playgrounds, open green space, picnic areas, and athletic facilities.