Bottle Creek Indian Mounds (1BA2) is an archaeological site located on a low swampy island within the Mobile-Tensaw River Delta north of Mobile, Alabama, United States. It was occupied by the peoples of the Pensacola culture, a regional Mississippian culture variant, and is the largest site of the Mississippian culture on the central Gulf Coast. It is important to understanding the history and culture of the Mobile-Tensaw delta in late prehistoric times and has been designated as a National Historic Landmark.