This is the sally port or main entrance to Ft. Morgan in Gulf Shores, Alabama. Ft. Morgan is located at the western end of Alabama State Road 180 at the mouth of Mobile Bay on the eastern shore.

The dry moat at Ft. Morgan between the glacis, or sloping cleared ground around the fort, and the fort's inner walls. During an attack, the moat could be used to move around the fort. Ft. Morgan is at the western end of Alabama State Road 180 on the eastern shore of the mouth of Mobile Bay.

Interior arched walls of the casemates of Ft. Morgan in Gulf Shores, Alabama. Ft. Morgan is located at the western end of Alabama State Road 180 on the eastern shore of Mobile Bay at the mouth

Interior arched walls of the casemates of Ft. Morgan in Gulf Shores, Alabama. Ft. Morgan is located at the western end of Alabama State Road 180 on the eastern shore of Mobile Bay at the mouth.

This is the interior of Ft. Morgan at the mouth of Mobile Bay in Gulf Shores, Alabama. It is located at the western end of Alabama State Road 180 on the eastern shore of Mobile Bay.

Interior arched walls of the casemates of Ft. Morgan in Gulf Shores, Alabama. Ft. Morgan is located at the western end of Alabama State Road 180 on the eastern shore of Mobile Bay at the mouth.

Interior arched walls of the casemates of Ft. Morgan in Gulf Shores, Alabama. Ft. Morgan is located at the western end of Alabama State Road 180 on the eastern shore of Mobile Bay at the mouth.

Interior arched walls of the casemates of Ft. Morgan in Gulf Shores, Alabama. Ft. Morgan is located at the western end of Alabama State Road 180 on the eastern shore of Mobile Bay at the mouth.

These are some of the mortar placemebnts at Ft. Morgan in Gulf Shores, Alabama

The postern tunnel at Ft. Moultrie on Sullivan's Island, South Carolina.

Fort Moultrie was in use from 1776 until 1947, 171 years, as a coastal defense to protect Charleston, South Carolina. Originally called Fort Sullivan and built of palmetto logs, it was renamed Fort Moultrie after the battle for Sullivans Island.

This is one of the more modern guns at Fort Moultrie, South Carolina.

Fort Moultrie was in use from 1776 until 1947, 171 years, as a coastal defense to protect Charleston, South Carolina. Originally called Fort Sullivan and built of palmetto logs, it was renamed Fort Moultrie after the battle for Sullivans Island.

Ammunition bunker and cannons at Fort Moultrie, South Carolina.

Fort Moultrie was in use from 1776 until 1947, 171 years, as a coastal defense to protect Charleston, South Carolina. Originally called Fort Sullivan and built of palmetto logs, it was renamed Fort Moultrie after the battle for Sullivans Island.