DISTRICT OF COLUMBIA
May 29, 2017: added Camp Greene.
July 30, 2017: moved Fort Alert from South Coastal Georgia - Page 3 to Southern Georgia - Page 4.
April 17, 2017: revised Anderson County listings in Early Pioneer Stations and Forts with info provided by Dale Royalty.
July 30, 2017: added Hinkle's Blockhouse.
December 26, 2017: updated Dakota War (Sioux Uprising) Defenses.
February 27, 2017: added Barnesville Fort.
March 19, 2017: added Sulphur Springs Battery. Revised Civil War Defenses of St. Louis.
April 13, 2017: added Sleepy Hollow Redoubt.
August 7, 2017: added Rye Fort. Revised Miller's Hill Redoubt.
October 7, 2017: added Blockhouse at Swift's Landing, Fort at the Bay of the Cayugas, Cayugas Bay Blockhouse, Mud Creek Blockhouse with information provided by Tom Sawtelle, and also added Thiohero, Carantonan.
October 22, 2017: added Iroquois Indian Fort, Genesee Castle, Sonnontuan, Gandachiragou, Gandougarae, Galen Blockhouse, Canandaigua Blockhouse, Seneca Falls Blockhouse. Revised Algonquin Indian Fort, Ganondagan.
April 3, 2017: added Camp Yadkin.
July 8, 2017: added Croatan Station Redoubt, Evan's Mill Blockhouse.
NORTHERN MARIANA ISLANDS
February 18, 2017: added Yellow Creek Blockhouse.
PANAMA CANAL ZONE
February 13, 2017: added Reardon's Station.
September 25, 2017: revised Fort Mosquetal.
June 12, 2017: added Fort Sod.
U.S. VIRGIN ISLANDS
February 28, 2017: added Camp Rucker, Camp Springdale, Camp Todd, Camp Advance, Camp Griffin, Camp Wadsworth.
March 21, 2017: revised Civil War Defenses of Centreville.
April 17, 2017: added Camp Davis.
February 18, 2017: added Greathouse's Blockhouse, Nessly's Blockhouse, Griffith's Stone House, Rail's Fort, Dague-Whetzel Blockhouse, Well's Fort (1), Himes' Blockhouse, Meighen Blockhose, Sockman's Blockhouse. Revised Holliday's Fort, Edgington's Fort, Fort Liberty.
February 12, 2017: added French Mine Blockhouse.
PRINCE EDWARD ISLAND
ST. PIERRE and MIQUELON
CANADIAN SHIPS and SHIPYARDS