Bottle Creek Indian Mounds, Archaeological site in Mobile-Tensaw Delta, Alabama.

Bottle Creek Indian Mounds is an archaeological site on Mound Island in the Mobile-Tensaw River Delta north of Mobile, Alabama. It holds 18 platform mounds, the tallest about 45 feet (14 m) high, with five of them set around a central plaza. The island is low and swampy, ringed by forest and dark waterways.

Occupied between 1250 and 1550, the site was the largest Mississippian chiefdom on the north-central Gulf Coast and a focal point for interaction with other Mississippian areas. It was first mapped in the 1880s, and David L. DeJarnette of the Alabama Museum of Natural History began the first professional investigation in 1932, testing a possible link to Moundville. It was listed on the National Register of Historic Places in 1974 and designated a National Historic Landmark on March 10, 1995.

Bottle Creek was a ceremonial center for the Pensacola people and a gateway to their society, drawing visitors along waterways from across the Mobile Delta and central Gulf Coast. Its name comes from the bottle-shaped creek beside Mound Island. Tours from Stockton include talks on the residents' sport and food before climbing the largest mound.

Access to this site requires a guided boat tour departing from Stockton, Alabama, with trips typically lasting between four to eight hours depending on water levels and conditions. Visitors should prepare for navigation through dense cypress stands and bring appropriate clothing for a journey in a swampy environment.

Bottle Creek was first mapped in the 1880s, yet the swamp and tall cypress trees around Mound Island kept it hidden and spared it most of the looting that hit similar Southeastern sites. Its 18 platform mounds, the tallest about 45 feet (14 m) high, were not professionally investigated until 1932, when David L. DeJarnette of the Alabama Museum of Natural History began work there.