The Atlanta BeltLine is a 22 miles (35 km) open and planned loop of multi-use trail and light rail transit system on a former railway corridor around the core of Atlanta, Georgia. The Atlanta BeltLine is designed to reconnect neighborhoods and communities historically divided and marginalized by infrastructure, improve transportation, add green space, promote redevelopment, create and preserve affordable housing, and showcase arts and culture. The project is in varying stages of development, with several mainline and spur trails complete and others in an unpaved, but hikeable, state. Since the passage of the More MARTA sales tax in 2016, construction of the light rail streetcar system is overseen by MARTA in close partnership with Atlanta BeltLine, Inc.

Atlanta is the capital and most populous city in the U.S. state of Georgia. It is the seat of Fulton County, and a portion of the city extends into neighboring DeKalb County. With a population of 498,715 living within the city limits, Atlanta is the eighth most populous city in the Southeast and 38th most populous city in the United States according to the 2020 U.S. census. It is the core of the much larger Atlanta metropolitan area, which is home to more than 6.3 million people, making it the sixth-largest U.S. metropolitan area. Situated among the foothills of the Appalachian Mountains at an elevation of just over 1,000 feet (300 m) above sea level, Atlanta features unique topography that includes rolling hills, lush greenery, and the densest urban tree coverage of any major city in the United States.