Main Gateway

Two sets of gates protected the main entrance, or sally port. During the improvements made in the 1840s the drawbridge was added to make the approach to the gates more difficult.

The drawbridge, operated by a unique system of iron counterweights ...

Alamo Low Barracks and Main Gateway

Mission San Antonio de Valero, established nearby in 1718, was relocated here in 1724. By 1762, the mission plaza was enclosed by thick stone and adobe walls. The 11x14-foot main gateway was located at this site along the south wall. ...